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Fencer Vulns
high 7.8

CVE-2026-18308 json

GIMP TIF File Parsing Integer Overflow Remote Code Execution Vulnerability

published 2026-08-20 2 mo ago modified 2026-10-26 14 d ago also EUVD-2026-63457

cvss
7.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

GIMP TIF 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 TIF 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-29405.

Patch / fix

  • gimp Debian 13 3.0.4-3+deb13u10
  • gimp Debian 14 3.2.6-1

debian advisories DEBIAN-CVE-2026-18308

  • gimp RHEL 9 2:3.0.4-4.el9_8.10
  • gimp-libs RHEL 9 2:3.0.4-4.el9_8.10

red hat advisories RHSA-2026:61587

  • gimp openSUSE Leap 16.0 3.0.8-bp160.10.1

opensuse advisories openSUSE-SU-2026:21959-1

  • gimp AlmaLinux 9 2:3.0.4-4.el9_8.10
  • gimp-libs AlmaLinux 9 2:3.0.4-4.el9_8.10

almalinux advisories ALSA-2026:61587

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-18308 updated cvss 7.8

gimp: GIMP: Remote Code Execution via TIF File Parsing Integer Overflow

  • Red Hat Enterprise Linux 6 gimp, gimp-libs, gimp-devel-tools, gimp-help-browser
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 9) gimp 3.0.4-4.el9_8.10, gimp-libs 3.0.4-4.el9_8.10
    fixed: vendor fix RHSA-2026:61587
  • Red Hat Enterprise Linux 7 gimp, gimp-libs, gimp-devel-tools Red Hat Enterprise Linux 8 gimp, pygtk2, gimp-libs, pygobject2, python2-cairo, pygtk2-codegen, +3 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 mo ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • GIMP GIMP

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.