Security update for python-PyJWT

Announcement ID: SUSE-SU-2026:20934-1
Release Date: 2026-03-25T18:08:48Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-32597 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  • CVE-2026-32597 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • CVE-2026-32597 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products:
  • SUSE Linux Enterprise Server - BCI 16.0

An update that solves one vulnerability can now be installed.

Description:

This update for python-PyJWT fixes the following issue:

Update to PyJWT 2.12.1:

  • CVE-2026-32597: PyJWT accepts unknown crit header extensions (bsc#1259616).

Changelog:

Update to 2.12.1:

  • Add missing typing_extensions dependency for Python < 3.11 in #1150

Update to 2.12.0:

  • Annotate PyJWKSet.keys for pyright by @tamird in #1134
  • Close HTTPError response to prevent ResourceWarning on Python 3.14 by @veeceey in #1133
  • Do not keep algorithms dict in PyJWK instances by @akx in #1143
  • Use PyJWK algorithm when encoding without explicit algorithm in #1148
  • Docs: Add PyJWKClient API reference and document the two-tier caching system (JWK Set cache and signing key LRU cache).

Update to 2.11.0:

  • Enforce ECDSA curve validation per RFC 7518 Section 3.4.
  • Fix build system warnings by @kurtmckee in #1105
  • Validate key against allowed types for Algorithm family in #964
  • Add iterator for JWKSet in #1041
  • Validate iss claim is a string during encoding and decoding by @pachewise in #1040
  • Improve typing/logic for options in decode, decode_complete by @pachewise in #1045
  • Declare float supported type for lifespan and timeout by @nikitagashkov in #1068
  • Fix SyntaxWarnings/DeprecationWarnings caused by invalid escape sequences by @kurtmckee in #1103
  • Development: Build a shared wheel once to speed up test suite setup times by @kurtmckee in #1114
  • Development: Test type annotations across all supported Python versions, increase the strictness of the type checking, and remove the mypy pre-commit hook by @kurtmckee in #1112
  • Support Python 3.14, and test against PyPy 3.10 and 3.11 by @kurtmckee in #1104
  • Development: Migrate to build to test package building in CI by @kurtmckee in #1108
  • Development: Improve coverage config and eliminate unused test suite code by @kurtmckee in #1115
  • Docs: Standardize CHANGELOG links to PRs by @kurtmckee in #1110
  • Docs: Fix Read the Docs builds by @kurtmckee in #1111
  • Docs: Add example of using leeway with nbf by @djw8605 in #1034
  • Docs: Refactored docs with autodoc; added PyJWS and jwt.algorithms docs by @pachewise in #1045
  • Docs: Documentation improvements for "sub" and "jti" claims by @cleder in #1088
  • Development: Add pyupgrade as a pre-commit hook by @kurtmckee in #1109
  • Add minimum key length validation for HMAC and RSA keys (CWE-326). Warns by default via InsecureKeyLengthWarning when keys are below minimum recommended lengths per RFC 7518 Section 3.2 (HMAC) and NIST SP 800-131A (RSA). Pass enforce_minimum_key_length=True in options to PyJWT or PyJWS to raise InvalidKeyError instead.
  • Refactor PyJWT to own an internal PyJWS instance instead of calling global api_jws functions.

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Server - BCI 16.0
    zypper in -t patch SUSE-SLES-16.0-445=1

Package List:

  • SUSE Linux Enterprise Server - BCI 16.0 (noarch)
    • python313-PyJWT-2.12.1-160000.1.1

References: