PT-2026-55936 · Red Hat · Red Hat Enterprise Linux 6+3

Published 2026-07-06 · Updated 2026-07-06 · CVE-2026-58380

Mitre

CVSS v3.1

7.3

High

Base vector

AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

A flaw was found in GIMP's PNM file format parser. When parsing a specially crafted PNM file, the pnmscanner gettoken() function writes a null terminator one byte past the end of a stack-allocated buffer due to an off-by-one error in the loop boundary check. This could lead to memory corruption, potentially resulting in denial of service or arbitrary code execution.

Fix

Weakness Enumeration

CWE-193

Related Identifiers

CVE-2026-58380

Affected Products

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-58380 · Security Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2496135 · Note
• https://gitlab.gnome.org/GNOME/gimp/-/commit/83699817 · Note
• https://gitlab.gnome.org/GNOME/gimp/-/issues/16206 · Note
• https://access.redhat.com/security/cve/CVE-2026-58380 · Note