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TI-2026-30495 Aliases CVE-2026-42169GHSA-xq2c-w9r3-rwr6

Gimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c)

Priority LOW 35CWE-131Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-131 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00133 2nd percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat Enterprise Linux 9—2:3.0.4-4.el9_8.9Patch availableCNA
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions—2:2.99.8-4.el9_2.7Patch availableCNA
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions—2:2.99.8-4.el9_4.19Patch availableCNA
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support—2:2.99.8-4.el9_6.20Patch availableCNA
Red HatRed Hat Enterprise Linux 6——Not affectedCNA
Red HatRed Hat Enterprise Linux 7——Not affectedCNA
Red HatRed Hat Enterprise Linux 8——Not affectedCNA
  • Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 2:3.0.4-4.el9_8.9 Patch available CNA
  • Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2:2.99.8-4.el9_2.7 Patch available CNA
  • Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2:2.99.8-4.el9_4.19 Patch available CNA
  • Red Hat Enterprise Linux 9.6 Extended Update Support VendorRed Hat Affected — Fixed in 2:2.99.8-4.el9_6.20 Patch available CNA
  • Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*9.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:9.6:*:*:*:*:*:*:*9.6VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:9.6:*:*:*:*:*:*:* Versions 9.6 Vulnerable ·Red Hat

Remediation

Red Hat 4 advisories

  • RHSA-2026:93589 Released 2026-11-02 · Red Hat rating Important
    gimp security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) gimp-2:2.99.8-4.el9_2.7, gimp-libs-2:2.99.8-4.el9_2.7
  • RHSA-2026:80509 Released 2026-10-12 · Red Hat rating Important
    gimp security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) gimp-2:2.99.8-4.el9_4.19, gimp-libs-2:2.99.8-4.el9_4.19
  • RHSA-2026:73768 Released 2026-09-30 · Red Hat rating Important
    gimp security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) gimp-2:2.99.8-4.el9_6.20, gimp-libs-2:2.99.8-4.el9_6.20
Show 1 more Red Hat advisories
  • RHSA-2026:50817 Released 2026-08-05 · Red Hat rating Important
    gimp security update
    • Red Hat Enterprise Linux AppStream (v. 9) gimp-2:3.0.4-4.el9_8.9, gimp-libs-2:3.0.4-4.el9_8.9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:50817
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:93589
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:80509
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:73768
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42169
  2. 2026-10-03 Alias added: GHSA-xq2c-w9r3-rwr6
  3. 2026-10-12 Fix available: gimp@2:2.99.8-4.el9_4.19 · CNA
  4. 2026-10-12 1 new reference · CNA
  5. 2026-10-12 Fix available: RHSA-2026:80509 · Red Hat
  6. 2026-10-12 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.4) · Red Hat
  7. 2026-11-02 Fix available: gimp@2:2.99.8-4.el9_2.7 · CNA
  8. 2026-11-02 1 new reference · CNA
  9. 2026-11-02 Fix available: RHSA-2026:93589 · Red Hat
  10. 2026-11-02 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.2) · Red Hat

References

Advisory 6

  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-10530 Code injection in [UNKNOWN] RichFaces KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
  • TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
See all 1955 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences