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TI-2026-42270 Aliases CVE-2026-59090GHSA-gfh5-q868-q4pw

Gimp: gimp: arbitrary code execution in psd plugin due to unsigned underflow

Priority HIGH 76CWE-191Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 4 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-191 and the CVSS impact.

Summary

A flaw was found in GIMP's PSD file format plugin. This vulnerability, an unsigned integer underflow in the `block_rem` variable, occurs when a user opens a specially crafted `.psd` image file. The underflow leads to parser confusion, enabling an attacker to inject arbitrary data as layer resource blocks. This can ultimately result in arbitrary code execution, allowing the attacker to run malicious code on the victim's system.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0076 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 4 advisoriesRed Hat: 4 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
—gimp3.3.1—No fix listedCNA
Red HatRed Hat Enterprise Linux 9—2:3.0.4-4.el9_8.10Patch 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——No fix listedCNA
Red HatRed Hat Enterprise Linux 7——No fix listedCNA
Red HatRed Hat Enterprise Linux 8——No fix listedCNA
  • gimp Vendor— Affected 3.3.1 Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 2:3.0.4-4.el9_8.10 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 — No fix listed CNA
  • Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:gimp:gimp:3.3.1:*:*:*:*:*:*:*3.3.1VulnerableGIMP
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*9.0VulnerableRed Hat
  • cpe:2.3:a:gimp:gimp:3.3.1:*:*:*:*:*:*:* Versions 3.3.1 Vulnerable ·GIMP
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 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-2026:61587 Released 2026-08-31 · Red Hat rating Important
    gimp security update
    • Red Hat Enterprise Linux AppStream (v. 9) gimp-2:3.0.4-4.el9_8.10, gimp-libs-2:3.0.4-4.el9_8.10

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:61587
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

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59090
  2. 2026-10-03 Alias added: GHSA-gfh5-q868-q4pw
  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. 2026-10-21 EPSS moved to the 50th–90th percentile
  8. 2026-11-02 Fix available: gimp@2:2.99.8-4.el9_2.7 · CNA
  9. 2026-11-02 1 new reference · CNA
  10. 2026-11-02 Fix available: RHSA-2026:93589 · Red Hat
  11. 2026-11-02 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.2) · Red Hat

References

Exploit 1

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