Heap-based Buffer Overflow Affecting mod_session package, versions <0:2.4.63-13.el10_2.4


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.81% (53rd percentile)

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  • Snyk IDSNYK-ROCKY10-MODSESSION-17884208
  • published8 Jul 2026
  • disclosed8 Jun 2026

Introduced: 8 Jun 2026

CVE-2026-34355  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:10 mod_session to version 0:2.4.63-13.el10_2.4 or higher.
This issue was patched in RLSA-2026:34109.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_session package and not the mod_session package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:10 relevant fixed versions and status.

A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.

CVSS Base Scores

version 3.1