Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-42169

CVE-2026-42169HIGH

Red Hat Red Hat Enterprise Linux 9 — Gimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c)

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  H  H  H    7.8   .0013    2.4     —

AFFECTED
  Product                                               Versions     Fixed
  Red Hat Enterprise Linux 9                            unspecified  2:3.0.4-4.el9_8.9
  Red Hat Enterprise Linux 9.6 Extended Update Support  unspecified  2:2.99.8-4.el9_6.20
  Red Hat Enterprise Linux 6                            unspecified  —
  Red Hat Enterprise Linux 7                            unspecified  —
  Red Hat Enterprise Linux 8                            unspecified  —

TIMELINE
  Apr 24  Reserved by redhat
  Aug 4   Published (CNA: redhat)
  Sep 30  RESCORED — CVE-2026-42169 (Red Hat Enterprise Linux 9). CVSS 7.3 → 7.8 (NVD).

CWE-131 · CNA: redhat · CVSS v3.1 · 4 references · NVD status: Analyzed

Description

A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of a heap allocation. Additionally, a heap-based buffer overflow exists in the DDS plug-in due to a BPP mismatch in the `load_layer()` function. Both vulnerabilities can be triggered by opening a specially crafted image file, potentially leading to code execution.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 24, 2026	Reserved	Reserved by redhat
August 4, 2026	Published	Published (CNA: redhat)
September 30, 2026	RESCORED	RESCORED — CVE-2026-42169 (Red Hat Enterprise Linux 9). CVSS 7.3 → 7.8 (NVD).

Affected

Affected products and packages — 5 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Red Hat	Red Hat Enterprise Linux 9	—	—	2:3.0.4-4.el9_8.9
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	—	—	2:2.99.8-4.el9_6.20
Red Hat	Red Hat Enterprise Linux 6	—	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—	—

Weaknesses

CWE-131

References (4)

https://access.redhat.com/errata/RHSA-2026:50817 [Issue Tracking]
https://access.redhat.com/errata/RHSA-2026:73768 [Issue Tracking]
https://access.redhat.com/security/cve/CVE-2026-42169 [Vendor Advisory]
https://bugzilla.redhat.com/show_bug.cgi?id=2461725 [Issue Tracking, Vendor Advisory]

Authoritative record: CVE-2026-42169 at cve.org

Vendors: red hat

Weaknesses: CWE-131

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-42169 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.