Memory Leak Affecting mod_http2 package, versions <0:2.0.29-4.el10_2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
4.58% (91st percentile)

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  • Snyk IDSNYK-RHEL10-MODHTTP2-17135324
  • published3 Jun 2026
  • disclosed10 Jul 2025

Introduced: 10 Jul 2025

CVE-2025-53020  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade RHEL:10 mod_http2 to version 0:2.0.29-4.el10_2 or higher.
This issue was patched in RHSA-2026:22528.

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. See How to fix? for RHEL:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1