mongo-c-driver - Debian Package Tracker

general

source: mongo-c-driver (main)
version: 2.5.8-1
maintainer: Mongo C Driver Team (DMD)
uploaders: Kevin Albertson (DMD) – Roberto C. Sanchez (DMD)
arch: all any
std-ver: 4.7.2
VCS: Git (Browse, QA)

versions [more versions can be listed by madison] [old versions available from snapshot.debian.org]

[pool directory]

o-o-stable: 1.17.6-1
o-o-sec: 1.17.6-1+deb11u2
oldstable: 1.23.1-1+deb12u3
stable: 1.30.4-1+deb13u2
testing: 2.5.7-1
unstable: 2.5.8-1

versioned links

1.17.6-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.17.6-1+deb11u2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.23.1-1+deb12u3: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.30.4-1+deb13u2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
2.5.7-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
2.5.8-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]

binaries

libbson-dev
libbson-doc
libbson2-2
libmongoc-dev
libmongoc-doc
libmongoc2-2

action needed

Problems while searching for a new upstream version high

uscan had problems while searching for a new upstream version:

In debian/watch no matching files for watch source
  https://github.com/mongodb/mongo-c-driver/releases

Created: 2026-11-06 Last update: 2026-11-08 00:00

Failed to analyze the VCS repository. Please troubleshoot and fix the issue. high

vcswatch reports that there is an error with this package's VCS, or the debian/changelog file inside it. Please check the error shown below and try to fix it. You might have to update the VCS URL in the debian/control file to point to the correct repository.

debian/changelog not found in any branch (tried master, debian, debian/master, debian/sid, debian/latest, debian/experimental, master)

Created: 2024-02-04 Last update: 2026-11-07 20:34

4 security issues in forky high

There are 4 open security issues in forky.

4 important issues:

CVE-2026-120678: A memory management flaw in the MongoDB C Driver's handling of compressed responses may cause the client library to hold on to memory that is never released. An unauthenticated party that controls the database endpoint a client application connects to may cause repeated, unbounded memory growth in that application, which may result in the application becoming unavailable. No credentials, transport security settings, or user interaction are required.
CVE-2026-120684: A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.
CVE-2026-120955: The GridFS file download API in the MongoDB C Driver does not check the result of an internal operation under certain error conditions during file retrieval. This can cause the process to terminate when stream operations continue. A user who can influence file download parameters can trigger this condition, which may result in service unavailability for applications using the affected API.
CVE-2026-120956: The MongoDB C Driver does not validate the type or format of a namespace field returned by the server in a query response. A MongoDB endpoint that a client application connects to, without needing any credentials, can return a malformed value in that field. This causes the client application process to terminate, and can also cause the driver to read memory outside an allocated buffer and to send a small amount of the application's own uninitialized heap memory back to the endpoint in a follow-up command. The impact is limited to the process that embeds the driver.

Created: 2026-11-04 Last update: 2026-11-04 18:30

17 security issues in bookworm high

There are 17 open security issues in bookworm.

16 important issues:

CVE-2026-84963: An incorrect numeric conversion in the JSON parsing component of the MongoDB C Driver's BSON library may cause an unusually large text value to be silently shortened, or the corresponding field to be omitted, while the parsing operation still reports success and returns no error. An unauthenticated party who can supply the input processed by an application that uses this component may cause that application to hold data that does not match what was submitted, which may result in unintended alteration of data.
CVE-2026-84964: A double free in the OpenSSL-based TLS certificate revocation checking path of the MongoDB C Driver can be reached by a TLS endpoint that the client already trusts. During the handshake, specially formed certificate data can cause the same heap object to be released twice. An unauthenticated party acting as the trusted endpoint may cause the connecting client application to terminate unexpectedly.
CVE-2026-84965: An integer wraparound in an allocation size calculation in the BSON library's JSON parsing code can cause a buffer to be released while a following copy operation still writes through the stale pointer. On builds where sizes are 32 bits, an unauthenticated party able to supply a sufficiently large JSON input to an application that links the library may cause that application to terminate unexpectedly, resulting in denial of service.
CVE-2026-88035: A size check in the client-side authentication path of the MongoDB C Driver can wrap around, so an unusually large user-name value is accepted and copied past the end of a small buffer. A party able to set the driver's connection settings may cause the application that embeds the driver to terminate unexpectedly. Reaching this code requires a build in which the optional external SASL authentication backend is present and a connection configured to use it.
CVE-2026-88036: Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB C Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier passed by an affected application may obtain stored file content beyond the intended target or cause all GridFS file chunks in the affected bucket to be removed, rendering stored file content unreadable.
CVE-2026-93394: A flaw in libmongoc's SCRAM authentication implementation caused the client to continue the authentication handshake and transmit the client proof even when a nonce mismatch was detected in the server's first message. An unauthorized party with a man-in-the-middle position could exploit this by injecting a crafted server-first-message containing a controlled salt and low iteration count, then capturing the resulting client proof to perform offline password cracking. This vulnerability is mitigated by TLS, which is standard in production deployments.
CVE-2026-93395: A missing lower-bound validation in the bson_new_from_buffer() function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does not verify that the value is at least 5 (the minimum valid BSON document size) before using it in an array index calculation. When the length field is zero, the expression used to check the document's null terminator wraps to UINT32_MAX, causing a heap out-of-bounds read that crashes the process. An unauthorized party who can supply crafted BSON input to an application using this API can cause a denial of service.
CVE-2026-96746: An out-of-bounds write in the connection-monitoring logic of the MongoDB C Driver may allow an unauthenticated party who controls name resolution and the responses of the hosts named in a client's connection string to write beyond the end of a heap buffer. This may cause the application using the driver to terminate unexpectedly.
CVE-2026-106428: An out-of-bounds read in SCRAM authentication response parsing in the MongoDB C Driver can read one byte beyond a fixed-size buffer when processing a malformed server-final message. A server or network intermediary able to provide this message before server-signature verification can cause the application using the driver to terminate. The extra byte is not returned through the protocol.
CVE-2026-106431: An off-by-one error in the BSON bulk document writer in the MongoDB C Driver can write one zero byte immediately past a heap allocation when a document ends at a specific buffer boundary. An actor who can influence the size of documents serialized by an embedding application can corrupt adjacent process memory or terminate the process. Reaching this issue requires the application to use the BSON bulk-writer API and produce a precise cumulative document size.
CVE-2026-106437: The BSON buffer-reservation API in the MongoDB C Driver can record a length smaller than the five-byte BSON minimum. Later append or comparison operations can underflow unsigned length calculations and read or write outside the document buffer. An actor who can influence the length supplied by an embedding application can cause the application to terminate or read or corrupt adjacent process memory. Reaching this issue requires the application to pass an undersized value to bson_reserve_buffer and then perform an affected operation.
CVE-2026-106438: An incorrect calculation in Decimal128 string parsing in the MongoDB C Driver can accept certain over-precision inputs containing leading zeros instead of rejecting them. This produces a value different from the supplied text. An actor who can provide a decimal string to an embedding application, including through Extended JSON parsing, can cause the application to store or use an incorrect numeric value.
CVE-2026-120678: A memory management flaw in the MongoDB C Driver's handling of compressed responses may cause the client library to hold on to memory that is never released. An unauthenticated party that controls the database endpoint a client application connects to may cause repeated, unbounded memory growth in that application, which may result in the application becoming unavailable. No credentials, transport security settings, or user interaction are required.
CVE-2026-120684: A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.
CVE-2026-120955: The GridFS file download API in the MongoDB C Driver does not check the result of an internal operation under certain error conditions during file retrieval. This can cause the process to terminate when stream operations continue. A user who can influence file download parameters can trigger this condition, which may result in service unavailability for applications using the affected API.
CVE-2026-120956: The MongoDB C Driver does not validate the type or format of a namespace field returned by the server in a query response. A MongoDB endpoint that a client application connects to, without needing any credentials, can return a malformed value in that field. This causes the client application process to terminate, and can also cause the driver to read memory outside an allocated buffer and to send a small amount of the application's own uninitialized heap memory back to the endpoint in a follow-up command. The impact is limited to the process that embeds the driver.

1 issue postponed or untriaged:

CVE-2026-81524: (postponed; to be fixed through a stable update) A weakness in the MongoDB C Driver allows special elements in caller-supplied database and collection name components to pass without sanitization when the driver composes the target namespace for an operation. An application that incorporates untrusted input into these name components can have operations directed at a resource other than the one intended.

Created: 2026-08-28 Last update: 2026-11-04 18:30

6 security issues in bullseye high

There are 6 open security issues in bullseye.

2 important issues:

CVE-2026-9100: The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).
CVE-2026-81524: A weakness in the MongoDB C Driver allows special elements in caller-supplied database and collection name components to pass without sanitization when the driver composes the target namespace for an operation. An application that incorporates untrusted input into these name components can have operations directed at a resource other than the one intended.

4 issues postponed or untriaged:

CVE-2026-4359: (postponed; to be fixed through a stable update) A compromised third party cloud server or man-in-the-middle attacker could send a malformed HTTP response and cause a crash in applications using the MongoDB C driver.
CVE-2026-6231: (postponed; to be fixed through a stable update) The bson_validate function may return early on specific inputs and incorrectly report success. This behavior could result in skipping validation for BSON data, allowing malformed or invalid UTF-8 sequences to bypass validation and be processed incorrectly. The issue may affect applications that rely on these functions to validate untrusted BSON data before further processing. This issue affects MongoDB C Driver versions prior to 1.30.5, MongoDB C Driver version 2.0.0 and MongoDB C Driver version 2.0.1
CVE-2026-6691: (postponed; to be fixed through a stable update) The MongoDB C Driver's Cyrus SASL integration performs unsafe string copying during username canonicalization, enabling a heap buffer overflow before any authentication or network traffic. This may be triggered by passing untrusted input in the username of a MongoDB URI with authMechanism=GSSAPI.
CVE-2025-14911: (postponed; to be fixed through a stable update) User-controlled chunkSize metadata from MongoDB lacks appropriate validation allowing malformed GridFS metadata to overflow the bounding container.

Created: 2026-05-20 Last update: 2026-08-30 08:30

Multiarch hinter reports 3 issue(s) normal

There are issues with the multiarch metadata for this package.

libbson-doc could be marked Multi-Arch: foreign
libmongoc-doc could be marked Multi-Arch: foreign
libbson2-2 could be marked Multi-Arch: same

Created: 2018-11-07 Last update: 2026-11-08 00:30

lintian reports 1100 warnings normal

Lintian reports 1100 warnings about this package. You should make the package lintian clean getting rid of them.

Created: 2026-10-09 Last update: 2026-10-09 12:01

1 low-priority security issue in trixie low

There is 1 open security issue in trixie.

1 issue left for the package maintainer to handle:

CVE-2026-93395: (needs triaging) A missing lower-bound validation in the bson_new_from_buffer() function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does not verify that the value is at least 5 (the minimum valid BSON document size) before using it in an array index calculation. When the length field is zero, the expression used to check the document's null terminator wraps to UINT32_MAX, causing a heap out-of-bounds read that crashes the process. An unauthorized party who can supply crafted BSON input to an application using this API can cause a denial of service.

You can find information about how to handle this issue in the security team's documentation.

16 issues that should be fixed with the next stable update:

CVE-2026-84963: An incorrect numeric conversion in the JSON parsing component of the MongoDB C Driver's BSON library may cause an unusually large text value to be silently shortened, or the corresponding field to be omitted, while the parsing operation still reports success and returns no error. An unauthenticated party who can supply the input processed by an application that uses this component may cause that application to hold data that does not match what was submitted, which may result in unintended alteration of data.
CVE-2026-84964: A double free in the OpenSSL-based TLS certificate revocation checking path of the MongoDB C Driver can be reached by a TLS endpoint that the client already trusts. During the handshake, specially formed certificate data can cause the same heap object to be released twice. An unauthenticated party acting as the trusted endpoint may cause the connecting client application to terminate unexpectedly.
CVE-2026-84965: An integer wraparound in an allocation size calculation in the BSON library's JSON parsing code can cause a buffer to be released while a following copy operation still writes through the stale pointer. On builds where sizes are 32 bits, an unauthenticated party able to supply a sufficiently large JSON input to an application that links the library may cause that application to terminate unexpectedly, resulting in denial of service.
CVE-2026-84969: A memory-handling error in the BSON-to-JSON conversion helpers of the MongoDB C Driver can write a small number of bytes past the end of a heap buffer when a binary field is encoded and the output is cut short at a caller-configured length limit. A party who supplies the document content, with no privileges on the application that links the driver, may cause a small amount of data outside the intended buffer to be altered.
CVE-2026-88035: A size check in the client-side authentication path of the MongoDB C Driver can wrap around, so an unusually large user-name value is accepted and copied past the end of a small buffer. A party able to set the driver's connection settings may cause the application that embeds the driver to terminate unexpectedly. Reaching this code requires a build in which the optional external SASL authentication backend is present and a connection configured to use it.
CVE-2026-88036: Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB C Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier passed by an affected application may obtain stored file content beyond the intended target or cause all GridFS file chunks in the affected bucket to be removed, rendering stored file content unreadable.
CVE-2026-93394: A flaw in libmongoc's SCRAM authentication implementation caused the client to continue the authentication handshake and transmit the client proof even when a nonce mismatch was detected in the server's first message. An unauthorized party with a man-in-the-middle position could exploit this by injecting a crafted server-first-message containing a controlled salt and low iteration count, then capturing the resulting client proof to perform offline password cracking. This vulnerability is mitigated by TLS, which is standard in production deployments.
CVE-2026-96746: An out-of-bounds write in the connection-monitoring logic of the MongoDB C Driver may allow an unauthenticated party who controls name resolution and the responses of the hosts named in a client's connection string to write beyond the end of a heap buffer. This may cause the application using the driver to terminate unexpectedly.
CVE-2026-106428: An out-of-bounds read in SCRAM authentication response parsing in the MongoDB C Driver can read one byte beyond a fixed-size buffer when processing a malformed server-final message. A server or network intermediary able to provide this message before server-signature verification can cause the application using the driver to terminate. The extra byte is not returned through the protocol.
CVE-2026-106431: An off-by-one error in the BSON bulk document writer in the MongoDB C Driver can write one zero byte immediately past a heap allocation when a document ends at a specific buffer boundary. An actor who can influence the size of documents serialized by an embedding application can corrupt adjacent process memory or terminate the process. Reaching this issue requires the application to use the BSON bulk-writer API and produce a precise cumulative document size.
CVE-2026-106437: The BSON buffer-reservation API in the MongoDB C Driver can record a length smaller than the five-byte BSON minimum. Later append or comparison operations can underflow unsigned length calculations and read or write outside the document buffer. An actor who can influence the length supplied by an embedding application can cause the application to terminate or read or corrupt adjacent process memory. Reaching this issue requires the application to pass an undersized value to bson_reserve_buffer and then perform an affected operation.
CVE-2026-106438: An incorrect calculation in Decimal128 string parsing in the MongoDB C Driver can accept certain over-precision inputs containing leading zeros instead of rejecting them. This produces a value different from the supplied text. An actor who can provide a decimal string to an embedding application, including through Extended JSON parsing, can cause the application to store or use an incorrect numeric value.
CVE-2026-120678: A memory management flaw in the MongoDB C Driver's handling of compressed responses may cause the client library to hold on to memory that is never released. An unauthenticated party that controls the database endpoint a client application connects to may cause repeated, unbounded memory growth in that application, which may result in the application becoming unavailable. No credentials, transport security settings, or user interaction are required.
CVE-2026-120684: A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.
CVE-2026-120955: The GridFS file download API in the MongoDB C Driver does not check the result of an internal operation under certain error conditions during file retrieval. This can cause the process to terminate when stream operations continue. A user who can influence file download parameters can trigger this condition, which may result in service unavailability for applications using the affected API.
CVE-2026-120956: The MongoDB C Driver does not validate the type or format of a namespace field returned by the server in a query response. A MongoDB endpoint that a client application connects to, without needing any credentials, can return a malformed value in that field. This causes the client application process to terminate, and can also cause the driver to read memory outside an allocated buffer and to send a small amount of the application's own uninitialized heap memory back to the endpoint in a follow-up command. The impact is limited to the process that embeds the driver.

Created: 2026-09-04 Last update: 2026-11-04 18:30

Standards version of the package is outdated. wishlist

The package should be updated to follow the last version of Debian Policy (Standards-Version 4.7.4 instead of 4.7.2).

Created: 2025-12-23 Last update: 2026-11-04 04:32

testing migrations

This package will soon be part of the auto-openssl transition. You might want to ensure that your package is ready for it. You can probably find supplementary information in the debian-release archives or in the corresponding release.debian.org bug.
excuses:
- Migration status for mongo-c-driver (2.5.7-1 to 2.5.8-1): Waiting for test results or another package, or too young (no action required now - check later)
- Issues preventing migration:
- ∙ ∙ Too young, only 4 of 5 days old
- Additional info (not blocking):
- ∙ ∙ Piuparts tested OK - https://piuparts.debian.org/sid/source/m/mongo-c-driver.html
- ∙ ∙ Reproduced on amd64 - info
- ∙ ∙ Reproduced on arm64 - info
- ∙ ∙ Reproduced on armhf - info
- ∙ ∙ Reproduced on i386 - info
- Not considered

news

[rss feed]

[2026-11-03] Accepted mongo-c-driver 2.5.8-1 (source) into unstable (Roberto C. Sanchez)
[2026-10-30] mongo-c-driver 2.5.7-1 MIGRATED to testing (Debian testing watch)
[2026-10-22] Accepted mongo-c-driver 2.5.7-1 (source) into unstable (Roberto C. Sanchez)
[2026-10-14] mongo-c-driver 2.5.6-1 MIGRATED to testing (Debian testing watch)
[2026-10-08] Accepted mongo-c-driver 2.5.6-1 (source) into unstable (Roberto C. Sanchez)
[2026-10-02] mongo-c-driver 2.5.5-1 MIGRATED to testing (Debian testing watch)
[2026-09-24] Accepted mongo-c-driver 2.5.5-1 (source) into unstable (Roberto C. Sanchez)
[2026-09-16] mongo-c-driver 2.5.3-1 MIGRATED to testing (Debian testing watch)
[2026-09-10] Accepted mongo-c-driver 2.5.3-1 (source) into unstable (Roberto C. Sanchez)
[2026-09-09] mongo-c-driver 2.5.2-1 MIGRATED to testing (Debian testing watch)
[2026-09-04] Accepted mongo-c-driver 1.30.4-1+deb13u3 (source) into proposed-updates (Debian FTP Masters) (signed by: Roberto C. Sanchez)
[2026-09-03] Accepted mongo-c-driver 2.5.2-1 (source) into unstable (Roberto C. Sanchez)
[2026-09-02] mongo-c-driver 2.5.1-1 MIGRATED to testing (Debian testing watch)
[2026-08-28] mongo-c-driver 2.5.0-1 MIGRATED to testing (Debian testing watch)
[2026-08-27] Accepted mongo-c-driver 2.5.1-1 (source) into unstable (Roberto C. Sanchez)
[2026-08-21] Accepted mongo-c-driver 2.5.0-1 (source) into unstable (Roberto C. Sanchez)
[2026-08-18] Accepted mongo-c-driver 2.4.0-1 (source) into unstable (Roberto C. Sanchez)
[2026-07-20] mongo-c-driver 2.3.3-1 MIGRATED to testing (Debian testing watch)
[2026-07-14] Accepted mongo-c-driver 2.3.3-1 (source) into unstable (Roberto C. Sanchez)
[2026-07-13] mongo-c-driver 2.3.2-1 MIGRATED to testing (Debian testing watch)
[2026-07-07] Accepted mongo-c-driver 2.3.2-1 (source) into unstable (Roberto C. Sanchez)
[2026-06-09] mongo-c-driver 2.3.1-1 MIGRATED to testing (Debian testing watch)
[2026-06-03] Accepted mongo-c-driver 2.3.1-1 (source) into unstable (Roberto C. Sanchez)
[2026-05-04] Accepted mongo-c-driver 1.23.1-1+deb12u3 (source) into oldstable-proposed-updates (Debian FTP Masters) (signed by: Roberto C. Sanchez)
[2026-05-04] Accepted mongo-c-driver 1.30.4-1+deb13u2 (source) into proposed-updates (Debian FTP Masters) (signed by: Roberto C. Sanchez)
[2026-04-28] mongo-c-driver 2.3.0-1 MIGRATED to testing (Debian testing watch)
[2026-04-22] Accepted mongo-c-driver 2.3.0-1 (source) into unstable (Roberto C. Sanchez)
[2026-04-15] mongo-c-driver 2.2.4-1 MIGRATED to testing (Debian testing watch)
[2026-04-09] Accepted mongo-c-driver 2.2.4-1 (source) into unstable (Roberto C. Sanchez)
[2026-03-09] mongo-c-driver 2.2.3-1 MIGRATED to testing (Debian testing watch)

bugs [bug history graph]

all: 1
RC: 0
I&N: 0
M&W: 0
F&P: 1
patch: 0

links

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ubuntu

[Information about Ubuntu for Debian Developers]

version: 2.5.7-1
1 bug