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CVE-2026-58012

A flaw was found in GLib.

Impact

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.

Affected products

VendorProductAffected versions
GnomeGlib
before 2.86.5
Version 2.88.0
RedhatEnterprise Linux
Versions 6.0, 7.0, 8.0, 9.0, 10.0

Weakness classification

CWE-126

References