Memory Leak The advisory has been revoked - it doesn't affect any version of package mod_http2 (opens in a new tab)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-RHEL10-MODHTTP2-16673839
- published14 May 2026
- disclosed10 Jul 2025
Introduced: 10 Jul 2025
CVE-2025-53020 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mod_http2 package and not the mod_http2 package as distributed by RHEL.
Late Release of Memory after Effective Lifetime vulnerability in Apache HTTP Server.
This issue affects Apache HTTP Server: from 2.4.17 up to 2.4.63.
Users are recommended to upgrade to version 2.4.64, which fixes the issue.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2379343
- https://access.redhat.com/security/cve/CVE-2025-53020
- https://access.redhat.com/errata/RHSA-2026:22528
- https://access.redhat.com/errata/RHSA-2026:50538
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html
- http://www.openwall.com/lists/oss-security/2025/07/10/10