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TI-2026-15053 Aliases CVE-2026-18300GHSA-28mq-m8mv-9qrq

Integer overflow in GIMP

Priority LOW 36CWE-190Published · 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: 7 fixed, 3 without a fix

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.

Summary

GIMP HDR File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of HDR files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29289.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00332 26th percentileScored 2026-11-07
Fix Partial Red Hat: 6 advisoriesRed Hat: 7 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
GIMPGIMP3.2.2—No fix listedCNA
  • GIMP VendorGIMP Affected 3.2.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gimp:gimp:3.2.2:*:*:*:*:*:*:*3.2.2VulnerableGIMP
  • cpe:2.3:a:gimp:gimp:3.2.2:*:*:*:*:*:*:* Versions 3.2.2 Vulnerable ·GIMP

Remediation

Red Hat 6 advisories

  • RHSA-2026:85253 Released 2026-10-19 · Red Hat rating Important
    gegl04 security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) gegl04-0.4.34-3.el9_4.2, gegl04-devel-docs-0.4.34-3.el9_4.2, gegl04-tools-0.4.34-3.el9_4.2
  • RHSA-2026:85254 Released 2026-10-19 · Red Hat rating Important
    gegl04 security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) gegl04-0.4.34-2.el9_2.2, gegl04-devel-docs-0.4.34-2.el9_2.2, gegl04-tools-0.4.34-2.el9_2.2
  • RHSA-2026:84575 Released 2026-10-19 · Red Hat rating Important
    gegl04 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) gegl04-0.4.34-3.el9_6.2, gegl04-tools-0.4.34-3.el9_6.2
Show 3 more Red Hat advisories
  • RHSA-2026:62425 Released 2026-09-02 · Red Hat rating Important
    gegl security update
    • Red Hat Enterprise Linux AppStream (v. 8) gegl-0.2.0-40.el8_10.1
  • RHSA-2026:62420 Released 2026-09-02 · Red Hat rating Important
    gegl04 security update
    • Red Hat Enterprise Linux AppStream (v. 8) gegl04-0.4.4-7.el8_10.1
    • Red Hat Enterprise Linux CRB (v. 8) gegl04-devel-0.4.4-7.el8_10.1
  • RHSA-2026:62170 Released 2026-09-01 · Red Hat rating Important
    gegl04 security update
    • Red Hat Enterprise Linux AppStream (v. 9) gegl04-0.4.62-1.el9_8.2, gegl04-devel-docs-0.4.62-1.el9_8.2, gegl04-tools-0.4.62-1.el9_8.2
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) gegl04-devel-0.4.62-1.el9_8.2

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-2026:62420, RHSA-2026:62425
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:62170
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:85254
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:85253
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:84575
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:62420
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:62170
Not affected: 5 products
  • Red Hat CodeReady Linux Builder EUS (v.9.6)
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux AppStream EUS (v.9.6)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18300
  2. 2026-10-03 Alias added: GHSA-28mq-m8mv-9qrq
  3. 2026-10-19 Fix available: RHSA-2026:84575 · Red Hat
  4. 2026-10-19 Fix available: Red Hat Enterprise Linux AppStream EUS (v.9.6) · Red Hat
  5. 2026-10-20 Fix available: RHSA-2026:85253 · Red Hat
  6. 2026-10-20 Fix available: RHSA-2026:85254 · Red Hat
  7. 2026-10-20 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux AppStream E4S (v.9.4) · Red Hat

References

Patch 2

  • TI-2023-23949 Integer overflow in GIMP CVSS 3.0HIGH 7.8
  • TI-2026-42270 Gimp: gimp: arbitrary code execution in psd plugin due to unsigned underflow CVSS 3.1CRITICAL 9.9
  • TI-2012-02388 Buffer overflow in the readstr_upto function in plug-ins/script-fu/tinyscheme/scheme.c in… CVSS 2.0HIGH 7.5
  • TI-2023-23948 Heap-based buffer overflow in GIMP CVSS 3.0HIGH 7.8
  • TI-2023-23950 GIMP PSP File Parsing Off-By-One Remote Code Execution Vulnerability CVSS 3.0HIGH 7.8
  • TI-2026-54560 Gimp: integer overflow in pcx loader (planes=4) leads to heap overflow on 32-bit CVSS 3.1HIGH 7.0
See all 110 →

Sources

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