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python-urllib3

HTTP library with thread-safe connection pooling for Python3

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general

source: python-urllib3 (main)
version: 2.3.0-2
maintainer: Debian Python Team (DMD)
uploaders: Daniele Tricoli [DMD]
arch: all
std-ver: 4.6.2
VCS: Git (Browse, QA)

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

[pool directory]

o-o-stable: 1.24.1-1
o-o-sec: 1.24.1-1+deb10u2
oldstable: 1.26.5-1~exp1
old-sec: 1.26.5-1~exp1+deb11u1
stable: 1.26.12-1+deb12u1
testing: 2.3.0-2
unstable: 2.3.0-2

versioned links

1.24.1-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.24.1-1+deb10u2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.26.5-1~exp1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.26.5-1~exp1+deb11u1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.26.12-1+deb12u1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
2.3.0-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]

binaries

python3-urllib3

action needed

A new upstream version is available: 2.5.0 high

A new upstream version 2.5.0 is available, you should consider packaging it.

Created: 2025-04-13 Last update: 2025-06-23 05:22

2 security issues in trixie high

There are 2 open security issues in trixie.

2 important issues:

CVE-2025-50181: urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, it is possible to disable redirects for all requests by instantiating a PoolManager and specifying retries in a way that disable redirects. By default, requests and botocore users are not affected. An application attempting to mitigate SSRF or open redirect vulnerabilities by disabling redirects at the PoolManager level will remain vulnerable. This issue has been patched in version 2.5.0.
CVE-2025-50182: urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, urllib3 does not control redirects in browsers and Node.js. urllib3 supports being used in a Pyodide runtime utilizing the JavaScript Fetch API or falling back on XMLHttpRequest. This means Python libraries can be used to make HTTP requests from a browser or Node.js. Additionally, urllib3 provides a mechanism to control redirects, but the retries and redirect parameters are ignored with Pyodide; the runtime itself determines redirect behavior. This issue has been patched in version 2.5.0.

Created: 2025-06-20 Last update: 2025-06-20 05:27

2 security issues in sid high

There are 2 open security issues in sid.

2 important issues:

CVE-2025-50181: urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, it is possible to disable redirects for all requests by instantiating a PoolManager and specifying retries in a way that disable redirects. By default, requests and botocore users are not affected. An application attempting to mitigate SSRF or open redirect vulnerabilities by disabling redirects at the PoolManager level will remain vulnerable. This issue has been patched in version 2.5.0.
CVE-2025-50182: urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, urllib3 does not control redirects in browsers and Node.js. urllib3 supports being used in a Pyodide runtime utilizing the JavaScript Fetch API or falling back on XMLHttpRequest. This means Python libraries can be used to make HTTP requests from a browser or Node.js. Additionally, urllib3 provides a mechanism to control redirects, but the retries and redirect parameters are ignored with Pyodide; the runtime itself determines redirect behavior. This issue has been patched in version 2.5.0.

Created: 2025-06-20 Last update: 2025-06-20 05:27

2 security issues in bullseye high

There are 2 open security issues in bullseye.

2 important issues:

CVE-2025-50181: urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, it is possible to disable redirects for all requests by instantiating a PoolManager and specifying retries in a way that disable redirects. By default, requests and botocore users are not affected. An application attempting to mitigate SSRF or open redirect vulnerabilities by disabling redirects at the PoolManager level will remain vulnerable. This issue has been patched in version 2.5.0.
CVE-2025-50182: urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, urllib3 does not control redirects in browsers and Node.js. urllib3 supports being used in a Pyodide runtime utilizing the JavaScript Fetch API or falling back on XMLHttpRequest. This means Python libraries can be used to make HTTP requests from a browser or Node.js. Additionally, urllib3 provides a mechanism to control redirects, but the retries and redirect parameters are ignored with Pyodide; the runtime itself determines redirect behavior. This issue has been patched in version 2.5.0.

Created: 2025-06-20 Last update: 2025-06-20 05:27

2 security issues in bookworm high

There are 2 open security issues in bookworm.

2 important issues:

CVE-2025-50181: urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, it is possible to disable redirects for all requests by instantiating a PoolManager and specifying retries in a way that disable redirects. By default, requests and botocore users are not affected. An application attempting to mitigate SSRF or open redirect vulnerabilities by disabling redirects at the PoolManager level will remain vulnerable. This issue has been patched in version 2.5.0.
CVE-2025-50182: urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, urllib3 does not control redirects in browsers and Node.js. urllib3 supports being used in a Pyodide runtime utilizing the JavaScript Fetch API or falling back on XMLHttpRequest. This means Python libraries can be used to make HTTP requests from a browser or Node.js. Additionally, urllib3 provides a mechanism to control redirects, but the retries and redirect parameters are ignored with Pyodide; the runtime itself determines redirect behavior. This issue has been patched in version 2.5.0.

Created: 2025-06-20 Last update: 2025-06-20 05:27

1 security issue in buster high

There is 1 open security issue in buster.

1 important issue:

CVE-2024-37891: urllib3 is a user-friendly HTTP client library for Python. When using urllib3's proxy support with `ProxyManager`, the `Proxy-Authorization` header is only sent to the configured proxy, as expected. However, when sending HTTP requests *without* using urllib3's proxy support, it's possible to accidentally configure the `Proxy-Authorization` header even though it won't have any effect as the request is not using a forwarding proxy or a tunneling proxy. In those cases, urllib3 doesn't treat the `Proxy-Authorization` HTTP header as one carrying authentication material and thus doesn't strip the header on cross-origin redirects. Because this is a highly unlikely scenario, we believe the severity of this vulnerability is low for almost all users. Out of an abundance of caution urllib3 will automatically strip the `Proxy-Authorization` header during cross-origin redirects to avoid the small chance that users are doing this on accident. Users should use urllib3's proxy support or disable automatic redirects to achieve safe processing of the `Proxy-Authorization` header, but we still decided to strip the header by default in order to further protect users who aren't using the correct approach. We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited: 1. Setting the `Proxy-Authorization` header without using urllib3's built-in proxy support. 2. Not disabling HTTP redirects. 3. Either not using an HTTPS origin server or for the proxy or target origin to redirect to a malicious origin. Users are advised to update to either version 1.26.19 or version 2.2.2. Users unable to upgrade may use the `Proxy-Authorization` header with urllib3's `ProxyManager`, disable HTTP redirects using `redirects=False` when sending requests, or not user the `Proxy-Authorization` header as mitigations.

Created: 2024-06-17 Last update: 2024-06-24 17:49

debian/patches: 2 patches to forward upstream low

Among the 3 debian patches available in version 2.3.0-2 of the package, we noticed the following issues:

2 patches where the metadata indicates that the patch has not yet been forwarded upstream. You should either forward the patch upstream or update the metadata to document its real status.

Created: 2024-01-22 Last update: 2025-03-12 21:01

Standards version of the package is outdated. wishlist

The package should be updated to follow the last version of Debian Policy (Standards-Version 4.7.2 instead of 4.6.2).

Created: 2024-04-07 Last update: 2025-03-12 16:32

news

[2025-03-16] python-urllib3 2.3.0-2 MIGRATED to testing (Debian testing watch)
[2025-03-12] Accepted python-urllib3 2.3.0-2 (source) into unstable (Colin Watson)
[2025-01-23] python-urllib3 2.3.0-1 MIGRATED to testing (Debian testing watch)
[2025-01-17] Accepted python-urllib3 2.3.0-1 (source) into unstable (Colin Watson)
[2025-01-03] Accepted python-urllib3 1.26.12-1+deb12u1 (source) into proposed-updates (Debian FTP Masters) (signed by: Guilhem Moulin)
[2024-12-21] Accepted python-urllib3 1.26.5-1~exp1+deb11u1 (source) into oldstable-security (Guilhem Moulin)
[2024-12-14] python-urllib3 2.2.3-4 MIGRATED to testing (Debian testing watch)
[2024-12-11] Accepted python-urllib3 2.2.3-4 (source) into unstable (Alexandre Detiste)
[2024-12-02] python-urllib3 2.2.3-3 MIGRATED to testing (Debian testing watch)
[2024-11-29] Accepted python-urllib3 2.2.3-3 (source) into unstable (Colin Watson)
[2024-11-13] Accepted python-urllib3 2.2.3-2 (source) into experimental (Colin Watson)
[2024-11-11] Accepted python-urllib3 2.2.3-1 (source) into experimental (Colin Watson)
[2024-08-01] python-urllib3 2.0.7-2 MIGRATED to testing (Debian testing watch)
[2024-06-12] Accepted python-urllib3 2.0.7-2 (source) into unstable (Alexandre Detiste)
[2024-01-24] python-urllib3 1.26.18-2 MIGRATED to testing (Debian testing watch)
[2024-01-21] Accepted python-urllib3 1.26.18-2 (source) into unstable (Stefano Rivera)
[2023-11-12] Accepted python-urllib3 2.0.7-1 (source) into experimental (Daniele Tricoli)
[2023-11-08] Accepted python-urllib3 1.24.1-1+deb10u2 (source) into oldoldstable (Sean Whitton)
[2023-10-24] python-urllib3 1.26.18-1 MIGRATED to testing (Debian testing watch)
[2023-10-21] Accepted python-urllib3 1.26.18-1 (source) into unstable (Stefano Rivera)
[2023-10-14] python-urllib3 1.26.17-1 MIGRATED to testing (Debian testing watch)
[2023-10-10] Accepted python-urllib3 1.26.17-1 (source) into unstable (Daniele Tricoli)
[2023-10-08] Accepted python-urllib3 1.24.1-1+deb10u1 (source) into oldoldstable (Guilhem Moulin)
[2023-07-03] python-urllib3 1.26.16-1 MIGRATED to testing (Debian testing watch)
[2023-06-29] Accepted python-urllib3 1.26.16-1 (source) into unstable (Daniele Tricoli)
[2022-09-25] python-urllib3 1.26.12-1 MIGRATED to testing (Debian testing watch)
[2022-09-22] Accepted python-urllib3 1.26.12-1 (source) into unstable (Anthony Fok)
[2022-03-22] python-urllib3 1.26.9-1 MIGRATED to testing (Debian testing watch)
[2022-03-19] Accepted python-urllib3 1.26.9-1 (source) into unstable (Daniele Tricoli)
[2022-03-16] python-urllib3 1.26.8-1 MIGRATED to testing (Debian testing watch)

1
2

bugs [bug history graph]

all: 2
RC: 0
I&N: 2
M&W: 0
F&P: 0
patch: 0

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version: 2.3.0-2
2 bugs

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