Heap-based Buffer Overflow Affecting mod_proxy_html package, versions <1:2.4.37-65.module+el8.10.0+40257+286895ef.9


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
1.21% (68th percentile)

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  • Snyk IDSNYK-ROCKY8-MODPROXYHTML-18165054
  • published22 Jul 2026
  • disclosed8 Jun 2026

Introduced: 8 Jun 2026

CVE-2026-34356  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 mod_proxy_html to version 1:2.4.37-65.module+el8.10.0+40257+286895ef.9 or higher.
This issue was patched in RLSA-2026:42828.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_proxy_html package and not the mod_proxy_html package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie*

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.

CVSS Base Scores

version 3.1