CVE-2025-12084 The advisory has been revoked - it doesn't affect any version of package python3 (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALMALINUX10-PYTHON3-15236065
- published6 Feb 2026
- disclosed28 Jan 2026
Introduced: 28 Jan 2026
CVE-2025-12084 (opens in a new tab)Amendment
The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python3 package and not the python3 package as distributed by AlmaLinux.
When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively nested documents.
References
- https://errata.almalinux.org/8/ALSA-2026-0123.html
- https://errata.almalinux.org/8/ALSA-2026-1374.html
- https://errata.almalinux.org/9/ALSA-2026-1408.html
- https://errata.almalinux.org/9/ALSA-2026-1410.html
- https://errata.almalinux.org/9/ALSA-2026-1478.html
- https://errata.almalinux.org/8/ALSA-2026-1631.html
- https://errata.almalinux.org/10/ALSA-2026-1828.html
- https://access.redhat.com/security/cve/CVE-2025-12084
- https://access.redhat.com/errata/RHSA-2026:0123
- https://access.redhat.com/errata/RHSA-2026:1374
- https://access.redhat.com/errata/RHSA-2026:1408
- https://access.redhat.com/errata/RHSA-2026:1410
- https://access.redhat.com/errata/RHSA-2026:1478
- https://access.redhat.com/errata/RHSA-2026:1631
- https://access.redhat.com/errata/RHSA-2026:1828
- https://github.com/python/cpython/commit/027f21e417b26eed4505ac2db101a4352b7c51a0
- https://github.com/python/cpython/commit/08d8e18ad81cd45bc4a27d6da478b51ea49486e4
- https://github.com/python/cpython/commit/ddcd2acd85d891a53e281c773b3093f9db953964
- https://github.com/python/cpython/issues/142145
- https://github.com/python/cpython/pull/142146
- https://github.com/python/cpython/commit/27648a1818749ef44c420afe6173af6868715437
- https://github.com/python/cpython/commit/8d2d7bb2e754f8649a68ce4116271a4932f76907
- https://github.com/python/cpython/commit/9c9dda6625a2a90d2a06c657eee021d6be19842d
- https://github.com/python/cpython/commit/a696ba8b4d42fd632afc9bc88ad830a2e4cceed8
- https://github.com/python/cpython/commit/41f468786762348960486c166833a218a0a436af
- https://github.com/python/cpython/commit/57937a8e5e293f0dcba5115f7b7a11b1e0c9a273
- https://github.com/python/cpython/commit/e91c11449cad34bac3ea55ee09ca557691d92b53
- https://github.com/python/cpython/commit/a46c10ec9d4050ab67b8a932e0859a2ea60c3cb8
- https://github.com/python/cpython/commit/c97e87593063d84a2bd9fe7068b30eb44de23dc0