Buffer Over-read Affecting glib2 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-RHEL8-GLIB2-17755103
  • published1 Jul 2026
  • disclosed27 Mar 2026

Introduced: 27 Mar 2026

CVE-2026-58012  (opens in a new tab)
CWE-126  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 glib2.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glib2 package and not the glib2 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A flaw was found in GLib. A buffer over-read can occur in the g_regex_replace function when used with the G_REGEX_RAW compile flag and case-change replacement escapes because the string_append function processes matched substrings using UTF-8 functions that assume valid UTF-8 input, even when the string is treated as raw bytes. This vulnerability can cause a minor information disclosure of 1-5 bytes and a denial of service when the buffer over-read crosses a page boundary.

CVSS Base Scores

version 3.1