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TI-2026-76575 Aliases CVE-2026-112257GHSA-cch8-wx4h-hxqr

Out-of-bounds read and write in GIMP PSD thumbnail loader

Priority LOW 35CWE-121Published · 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
Partial Red Hat: 2 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-121 and the CVSS impact.

Summary

GIMP in Red Hat Enterprise Linux 6, 7, 8, 9 and 10 has an out-of-bounds read and write in its PSD thumbnail loader. The loader swaps BGR to RGB with a fixed 3-byte stride without checking that the JPEG thumbnail is RGB, so a crafted grayscale PSD thumbnail causes heap memory corruption. An attacker who gets a victim to browse or open the crafted file can crash the plug-in process and potentially execute arbitrary code.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

A flaw was found in GIMP. The PSD thumbnail resource loader performs a BGR-to-RGB channel swap with a fixed 3-byte stride and does not verify that the JPEG thumbnail is RGB. A crafted grayscale PSD thumbnail can cause a heap out-of-bounds read and write in the plug-in process, leading to a crash and potentially arbitrary code execution when the victim browses or opens the file.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00175 7th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 2 fixed, 3 without a fix

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 8—8100020261023073604.4c9c024fPatch availableCNA
Red HatRed Hat Enterprise Linux 9—2:3.0.4-4.el9_8.15Patch availableCNA
Red HatRed Hat Enterprise Linux 10——No fix listedCNA
Red HatRed Hat Enterprise Linux 6——No fix listedCNA
Red HatRed Hat Enterprise Linux 7——No fix listedCNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 8100020261023073604.4c9c024f Patch available CNA
  • Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 2:3.0.4-4.el9_8.15 Patch available CNA
  • Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE names CNA · 5

CPEVersionsRoleVendor
cpe:/a:redhat:enterprise_linux:8::appstream8—Red Hat
cpe:/a:redhat:enterprise_linux:9::appstream9—Red Hat
cpe:/a:redhat:enterprise_linux:1010—Red Hat
cpe:/o:redhat:rhel_els:66—Red Hat
cpe:/o:redhat:rhel_els:77—Red Hat
  • cpe:/a:redhat:enterprise_linux:8::appstream Versions 8 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:9::appstream Versions 9 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:10 Versions 10 — ·Red Hat
  • cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
  • cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat

Remediation

Red Hat Enterprise Linux 8 fixes this in version 8100020261023073604.4c9c024f, per RHSA-2026:95482. Red Hat Enterprise Linux 9 fixes this in version 2:3.0.4-4.el9_8.15, per RHSA-2026:93975. The sources list no fixed version for Red Hat Enterprise Linux 6, 7 and 10.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Red Hat 2 advisories

  • RHSA-2026:95482 Released 2026-11-05 · Red Hat rating Important
    gimp:2.8 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) gimp-2:2.8.22-26.module+el8.10.0+25170+1f1aa845.10.aarch64::gimp:2.8, gimp-2:2.8.22-26.module+el8.10.0+25170+1f1aa845.10.ppc64le::gimp:2.8, gimp-2:2.8.22-26.module+el8.10.0+25170+1f1aa845.10.s390x::gimp:2.8 +47
  • RHSA-2026:93975 Released 2026-11-02 · Red Hat rating Important
    gimp security update
    • Red Hat Enterprise Linux AppStream (v. 9) gimp-2:3.0.4-4.el9_8.15, gimp-libs-2:3.0.4-4.el9_8.15

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:95482
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:93975

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-112257
  2. 2026-10-20 Alias added: GHSA-cch8-wx4h-hxqr
  3. 2026-10-20 Affected versions changed · Red Hat
  4. 2026-10-20 CVSS score added · Red Hat
  5. 2026-10-20 CISA SSVC decision points changed
  6. 2026-10-20 Priority changed: MEDIUM → LOW
  7. 2026-10-21 Affected versions changed · Red Hat
  8. 2026-11-02 Fix available: Red Hat Enterprise Linux AppStream (v. 9) · Red Hat
  9. 2026-11-02 Fix available: gimp@2:3.0.4-4.el9_8.15 · CNA
  10. 2026-11-02 1 new reference · CNA
  11. 2026-11-03 Fix available: RHSA-2026:93975 · Red Hat
  12. 2026-11-05 Fix available: gimp:[email protected] · CNA
  13. 2026-11-05 1 new reference · CNA
  14. 2026-11-05 Fix available: Red Hat Enterprise Linux AppStream (v. 8) · Red Hat
  15. 2026-11-06 Fix available: RHSA-2026:95482 · Red Hat

References

Advisory 2

Other 2

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7412 →

Sources

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