python-msgpack - Debian Package Tracker

general

source: python-msgpack (main)
version: 1.2.1-3
maintainer: Debian OpenStack (DMD)
uploaders: Robert S. Edmonds [DMD] – Thomas Goirand [DMD]
arch: any
std-ver: 4.4.1
VCS: Git (Browse, QA)

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

[pool directory]

o-o-stable: 1.0.0-6
oldstable: 1.0.3-2
stable: 1.0.3-3
testing: 1.2.1-1
unstable: 1.2.1-3

versioned links

1.0.0-6: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.0.3-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.0.3-3: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.2.1-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.2.1-3: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]

binaries

python3-msgpack

action needed

A new upstream version is available: v1.2.3 high

A new upstream version v1.2.3 is available, you should consider packaging it.

Created: 2026-10-25 Last update: 2026-10-26 17:00

2 security issues in trixie high

There are 2 open security issues in trixie.

2 important issues:

CVE-2026-57585: MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.1, there is an Out-of-bounds read/crash on Unpacker reuse after a caught error, potentially leading to a DoS attack. If the Unpacker is used repeatedly after an error occurs, the process may crash with a SEGV. This issue has been fixed in version 1.2.1.
CVE-2026-114613: MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.3, the msgpack-python C extension (msgpack._cmsgpack) leaks a decoded map value when deserialization rejects a key with strict_map_key=True (the default). Repeated malformed inputs can cause unbounded process memory growth and denial of service in applications that deserialize attacker-controlled MessagePack data. Both unpackb() and the streaming Unpacker API are affected. The pure-Python fallback does not exhibit this leak in the reported tests. This issue is fixed in version 1.2.3.

Created: 2026-07-02 Last update: 2026-10-24 22:00

1 security issue in forky high

There is 1 open security issue in forky.

1 important issue:

CVE-2026-114613: MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.3, the msgpack-python C extension (msgpack._cmsgpack) leaks a decoded map value when deserialization rejects a key with strict_map_key=True (the default). Repeated malformed inputs can cause unbounded process memory growth and denial of service in applications that deserialize attacker-controlled MessagePack data. Both unpackb() and the streaming Unpacker API are affected. The pure-Python fallback does not exhibit this leak in the reported tests. This issue is fixed in version 1.2.3.

Created: 2026-10-23 Last update: 2026-10-24 22:00

2 security issues in bookworm high

There are 2 open security issues in bookworm.

2 important issues:

CVE-2026-57585: MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.1, there is an Out-of-bounds read/crash on Unpacker reuse after a caught error, potentially leading to a DoS attack. If the Unpacker is used repeatedly after an error occurs, the process may crash with a SEGV. This issue has been fixed in version 1.2.1.
CVE-2026-114613: MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.3, the msgpack-python C extension (msgpack._cmsgpack) leaks a decoded map value when deserialization rejects a key with strict_map_key=True (the default). Repeated malformed inputs can cause unbounded process memory growth and denial of service in applications that deserialize attacker-controlled MessagePack data. Both unpackb() and the streaming Unpacker API are affected. The pure-Python fallback does not exhibit this leak in the reported tests. This issue is fixed in version 1.2.3.

Created: 2026-07-02 Last update: 2026-10-24 22:00

1 security issue in bullseye high

There is 1 open security issue in bullseye.

1 important issue:

CVE-2026-57585: MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.1, there is an Out-of-bounds read/crash on Unpacker reuse after a caught error, potentially leading to a DoS attack. If the Unpacker is used repeatedly after an error occurs, the process may crash with a SEGV. This issue has been fixed in version 1.2.1.

Created: 2026-07-02 Last update: 2026-08-02 20:32

lintian reports 2 warnings normal

Lintian reports 2 warnings about this package. You should make the package lintian clean getting rid of them.

Created: 2021-01-27 Last update: 2026-10-25 04:31

1 new commit since last upload, is it time to release? normal

vcswatch reports that this package seems to have new commits in its VCS but has not yet updated debian/changelog. You should consider updating the Debian changelog and uploading this new version into the archive.

Here are the relevant commit logs:

commit 48c990a005e8f1a2135f3d91b52aec513a94024f
Author: Thomas Goirand <zigo@debian.org>
Date:   Sat Oct 24 17:11:29 2026 +0200

      * Build with Cython 3.0.x: drop the @cython.critical_section
        directives (Cython 3.1+ only, inert without free-threaded CPython)
        so the trixie backport builds.

Created: 2026-10-24 Last update: 2026-10-24 21:20

debian/patches: 2 patches to forward upstream low

Among the 5 debian patches available in version 1.2.1-3 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: 2026-10-25 Last update: 2026-10-25 06:22

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 4.4.1).

Created: 2020-01-21 Last update: 2026-10-24 21:20

testing migrations

excuses:
- Migration status for python-msgpack (1.2.1-1 to 1.2.1-3): BLOCKED: Rejected/violates migration policy/introduces a regression
- Issues preventing migration:
- ∙ ∙ Autopkgtest for borgbackup/1.4.5-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for borgbackup2/2.0.0b25-4: amd64: Test triggered (failure will be ignored), arm64: Test triggered (failure will be ignored), armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for buildbot/4.3.0-4: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for cachy/0.3.0-5: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for calibre/9.16.0+ds+~1.1.2-1: amd64: Pass ♻ (reference ♻), arm64: Pass ♻ (reference ♻), ppc64el: No tests, superficial or marked flaky ♻ (reference ♻), riscv64: No tests, superficial or marked flaky ♻ (reference ♻), s390x: No tests, superficial or marked flaky ♻ (reference ♻)
- ∙ ∙ Autopkgtest for calibre/9.17.0+ds+~1.1.2-1: armhf: Pass, i386: Test triggered
- ∙ ∙ Autopkgtest for ceilometer/1:27.0.0-4: amd64: Pass, arm64: Pass, armhf: No tests, superficial or marked flaky ♻ (reference ♻), i386: Test triggered, ppc64el: No tests, superficial or marked flaky ♻, riscv64: No tests, superficial or marked flaky ♻ (reference ♻), s390x: No tests, superficial or marked flaky ♻ (reference ♻)
- ∙ ∙ Autopkgtest for celery/5.6.3-4: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for dask.distributed/2024.12.1+ds-3: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Test triggered (failure will be ignored), s390x: Pass
- ∙ ∙ Autopkgtest for django-redis/7.0.0-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for hishel/1.1.9-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for influxdb-python/5.3.2-7: amd64: No tests, superficial or marked flaky ♻, arm64: No tests, superficial or marked flaky ♻, armhf: No tests, superficial or marked flaky ♻ (reference ♻), i386: Test triggered, ppc64el: No tests, superficial or marked flaky ♻, riscv64: No tests, superficial or marked flaky ♻ (reference ♻), s390x: No tests, superficial or marked flaky ♻ (reference ♻)
- ∙ ∙ Autopkgtest for karabo-bridge/0.6.2-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for keystone/2:30.0.0-3: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for kombu/5.6.2-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for mmtf-python/1.1.3-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for numcodecs/0.17.0+ds-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for pdm/2.29.3-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for pyro5/5.16-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for pysignalr/1.3.3-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-autobahn/24.4.2+dfsg1-5: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-biopython/1.88+dfsg-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-bumps/1.0.5-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-cachecontrol/0.14.4-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-can/4.6.1-4: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-cattrs/26.2.1-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-channels-redis/4.3.0-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-falcon/4.3.1-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-librosa/1.0.0-2: amd64: Pass, arm64: Pass, armhf: Failed (not a regression) ♻ (reference ♻), i386: Test triggered, ppc64el: Pass, riscv64: Failed (not a regression) ♻ (reference ♻), s390x: Failed (not a regression) ♻ (reference ♻)
- ∙ ∙ Autopkgtest for python-maggma/0.72.0-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-mashumaro/3.17-1: amd64: Pass, arm64: Failed (not a regression) ♻ (reference ♻), armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-msgpack/1.2.1-3: amd64: Regression ♻ (reference ♻), arm64: Regression ♻ (reference ♻), armhf: Regression ♻ (reference ♻), i386: Test triggered, ppc64el: Reference test triggered, but real test failed already ♻, riscv64: Regression ♻ (reference ♻), s390x: Regression ♻ (reference ♻)
- ∙ ∙ Autopkgtest for python-msgpack-numpy/0.4.8-1: amd64: No tests, superficial or marked flaky ♻ (reference ♻), arm64: No tests, superficial or marked flaky ♻ (reference ♻), armhf: No tests, superficial or marked flaky ♻ (reference ♻), i386: Test triggered, ppc64el: No tests, superficial or marked flaky ♻ (reference ♻), riscv64: No tests, superficial or marked flaky ♻ (reference ♻), s390x: No tests, superficial or marked flaky ♻ (reference ♻)
- ∙ ∙ Autopkgtest for python-oslo.privsep/3.12.0-3: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-oslo.serialization/5.11.0-4: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-persist-queue/1.0.0-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-pynvim/0.6.0-3: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-raygeo/1.61.0-3: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-thinc/9.1.1-5: amd64: No tests, superficial or marked flaky ♻ (reference ♻), arm64: No tests, superficial or marked flaky ♻ (reference ♻), armhf: No tests, superficial or marked flaky ♻ (reference ♻), i386: Test triggered, riscv64: No tests, superficial or marked flaky ♻ (reference ♻), s390x: No tests, superficial or marked flaky ♻ (reference ♻)
- ∙ ∙ Autopkgtest for python-tooz/9.1.0-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-trame-client/3.12.3-2: amd64: Pass, arm64: No tests, superficial or marked flaky ♻, armhf: Failed (not a regression) ♻ (reference ♻), i386: Test triggered, ppc64el: Pass, riscv64: No tests, superficial or marked flaky ♻ (reference ♻), s390x: No tests, superficial or marked flaky ♻ (reference ♻)
- ∙ ∙ Autopkgtest for python-trame-server/3.12.4-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for python-wslink/2.5.7-1: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for qcengine/0.51.0-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for spyne/2.14.0-8: amd64: No tests, superficial or marked flaky ♻ (reference ♻), arm64: No tests, superficial or marked flaky ♻ (reference ♻), armhf: No tests, superficial or marked flaky ♻ (reference ♻), i386: Test triggered, ppc64el: No tests, superficial or marked flaky ♻ (reference ♻), riscv64: No tests, superficial or marked flaky ♻ (reference ♻), s390x: No tests, superficial or marked flaky ♻ (reference ♻)
- ∙ ∙ Autopkgtest for zaqar/23.0.0-4: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Autopkgtest for zarr/3.4.1-2: amd64: Pass, arm64: Pass, armhf: Pass, i386: Test triggered, ppc64el: Pass, riscv64: Pass, s390x: Pass
- ∙ ∙ Too young, only 1 of 2 days old
- Additional info (not blocking):
- ∙ ∙ Piuparts tested OK - https://piuparts.debian.org/sid/source/p/python-msgpack.html
- ∙ ∙ Reproduced on amd64 - info
- ∙ ∙ Reproduced on arm64 - info
- ∙ ∙ Reproduced on armhf - info
- ∙ ∙ Reproduced on i386 - info
- Not considered

news

[rss feed]

[2026-10-24] Accepted python-msgpack 1.2.1-3 (source) into unstable (Thomas Goirand)
[2026-10-24] Accepted python-msgpack 1.2.1-2 (source) into unstable (Thomas Goirand)
[2026-09-24] python-msgpack 1.2.1-1 MIGRATED to testing (Debian testing watch)
[2026-09-19] Accepted python-msgpack 1.2.1-1 (source) into unstable (Thomas Goirand)
[2026-07-10] python-msgpack 1.1.2-4 MIGRATED to testing (Debian testing watch)
[2026-07-07] Accepted python-msgpack 1.1.2-4 (source) into unstable (Thomas Goirand)
[2026-07-07] python-msgpack 1.1.2-3 MIGRATED to testing (Debian testing watch)
[2026-07-05] Accepted python-msgpack 1.1.2-3 (source) into unstable (Thomas Goirand)
[2026-02-20] python-msgpack 1.1.2-2 MIGRATED to testing (Debian testing watch)
[2026-02-09] Accepted python-msgpack 1.1.2-2 (source) into unstable (Thomas Goirand)
[2025-12-14] python-msgpack 1.1.2-1 MIGRATED to testing (Debian testing watch)
[2025-12-07] Accepted python-msgpack 1.1.2-1 (source) into unstable (Thomas Goirand)
[2023-08-18] python-msgpack 1.0.3-3 MIGRATED to testing (Debian testing watch)
[2023-08-15] Accepted python-msgpack 1.0.3-3 (source) into unstable (Thomas Goirand)
[2022-11-23] python-msgpack 1.0.3-2 MIGRATED to testing (Debian testing watch)
[2022-11-20] Accepted python-msgpack 1.0.3-2 (source) into unstable (Thomas Goirand)
[2022-02-22] python-msgpack 1.0.3-1 MIGRATED to testing (Debian testing watch)
[2022-02-17] Accepted python-msgpack 1.0.3-1 (source) into unstable (Thomas Goirand)
[2021-08-26] python-msgpack 1.0.2-2 MIGRATED to testing (Debian testing watch)
[2021-08-16] Accepted python-msgpack 1.0.2-2 (source) into unstable (Thomas Goirand)
[2021-03-08] Accepted python-msgpack 1.0.2-1 (source) into experimental (Thomas Goirand)
[2020-11-26] python-msgpack 1.0.0-6 MIGRATED to testing (Debian testing watch)
[2020-11-24] Accepted python-msgpack 1.0.0-6 (source) into unstable (Thomas Goirand)
[2020-11-20] Accepted python-msgpack 1.0.0-5 (source) into unstable (Thomas Goirand)
[2020-10-14] Accepted python-msgpack 1.0.0-4 (source) into unstable (Thomas Goirand)
[2020-10-14] Accepted python-msgpack 1.0.0-3 (source) into unstable (Thomas Goirand)
[2020-10-14] Accepted python-msgpack 1.0.0-2 (source) into unstable (Thomas Goirand)
[2020-09-24] Accepted python-msgpack 1.0.0-1 (source) into experimental (Thomas Goirand)
[2020-03-26] python-msgpack 0.6.2-1 MIGRATED to testing (Debian testing watch)
[2020-03-14] Accepted python-msgpack 0.6.2-1 (source) into unstable (Thomas Goirand)

bugs [bug history graph]

all: 0

links

homepage
lintian (0, 2)
buildd: logs, reproducibility, cross
popcon
browse source code
other distros
security tracker
debian patches
debci

ubuntu

[Information about Ubuntu for Debian Developers]

version: 1.1.2-4