Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package expat (opens in a new tab)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-EXPAT-13876326
- published11 Nov 2025
- disclosed19 May 2026
Introduced: 11 Nov 2025
CVE-2025-59375 (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 expat package and not the expat package as distributed by AlmaLinux.
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
References
- https://errata.almalinux.org/10/ALSA-2025-19403.html
- https://errata.almalinux.org/10/ALSA-2025-21030.html
- https://errata.almalinux.org/8/ALSA-2025-21776.html
- https://errata.almalinux.org/9/ALSA-2025-22175.html
- https://errata.almalinux.org/8/ALSA-2026-10950.html
- https://errata.almalinux.org/10/ALSA-2026-19064.html
- https://errata.almalinux.org/9/ALSA-2026-19177.html
- https://access.redhat.com/security/cve/CVE-2025-59375
- https://access.redhat.com/errata/RHSA-2025:19403
- https://access.redhat.com/errata/RHSA-2025:21030
- https://access.redhat.com/errata/RHSA-2025:21776
- https://access.redhat.com/errata/RHSA-2025:22175
- https://access.redhat.com/errata/RHSA-2026:10950
- https://access.redhat.com/errata/RHSA-2026:19064
- https://access.redhat.com/errata/RHSA-2026:19177
- https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74
- https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes
- https://github.com/libexpat/libexpat/issues/1018
- https://github.com/libexpat/libexpat/pull/1034
- https://issues.oss-fuzz.com/issues/439133977
- http://www.openwall.com/lists/oss-security/2025/09/16/2
- http://www.openwall.com/lists/oss-security/2026/05/01/5
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html