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Fencer Vulns
high 7.8

CVE-2026-18306 json

GIMP SGI File Parsing Integer Overflow Remote Code Execution Vulnerability

published 2026-08-20 2 mo ago modified 2026-10-26 14 d ago also EUVD-2026-63455

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 SGI 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 SGI files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29396.

Patch / fix

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

debian advisories DEBIAN-CVE-2026-18306

  • gimp RHEL 8 2:2.8.22-26.module+el8.10.0+24752+9e6a86ef.8
  • pygtk2 RHEL 8 2.24.0-25.module+el8.9.0+21228+8e80d31d
  • gimp-libs RHEL 8 2:2.8.22-26.module+el8.10.0+24752+9e6a86ef.8
  • pygobject2 RHEL 8 2.28.7-5.module+el8.10.0+22676+becd68d6
  • python2-cairo RHEL 8 1.16.3-7.module+el8.10.0+22676+becd68d6
  • pygtk2-codegen RHEL 8 2.24.0-25.module+el8.9.0+21228+8e80d31d
  • python2-pycairo RHEL 8 1.16.3-7.module+el8.10.0+22676+becd68d6
  • gimp-devel-tools RHEL 8 2:2.8.22-26.module+el8.10.0+24752+9e6a86ef.8

red hat advisories RHSA-2026:80509RHSA-2026:73768RHSA-2026:62507RHSA-2026:61587

  • gimp SLE Workstation Extension 15 SP7, SLE Module for Package Hub 15 SP7 2.10.30-150400.3.79.1

suse advisories SUSE-SU-2026:4409-1

  • gimp openSUSE Leap 16.0 3.0.8-bp160.10.1
  • gimp openSUSE Tumbleweed 3.2.6-1.1

opensuse advisories openSUSE-SU-2026:21959-1openSUSE-SU-2026:11771-1

  • gimp AlmaLinux 8 2:2.8.22-26.module_el8.10.0+4267+35168c80.8
  • pygtk2 AlmaLinux 8 2.24.0-25.module_el8.9.0+3725+d1441900
  • gimp-libs AlmaLinux 8 2:2.8.22-26.module_el8.10.0+4267+35168c80.8
  • pygobject2 AlmaLinux 8 2.28.7-5.module_el8.10.0+4267+35168c80
  • python2-cairo AlmaLinux 8 1.16.3-7.module_el8.10.0+4267+35168c80
  • pygtk2-codegen AlmaLinux 8 2.24.0-25.module_el8.9.0+3725+d1441900
  • gimp-devel-tools AlmaLinux 8 2:2.8.22-26.module_el8.10.0+4267+35168c80.8
  • pygobject2-codegen AlmaLinux 8 2.28.7-5.module_el8.10.0+4267+35168c80

almalinux advisories ALSA-2026:62507ALSA-2026:61587

  • gimp Rocky Linux 8 2:2.8.22-26.module+el8.10.0+1927+52edb5a0
  • gimp Rocky Linux 8 2:2.8.22-26.module+el8.10.0+40181+ad0e3a65.6
  • gimp Rocky Linux 8 2:2.8.22-26.module+el8.10.0+40134+eab491b1.5
  • gimp Rocky Linux 8 2:2.8.22-26.module+el8.10.0+1998+a08ccc48.2
  • gimp Rocky Linux 8 2:2.8.22-26.module+el8.10.0+40033+6fd27379.3
  • gimp Rocky Linux 8 2:2.8.22-26.module+el8.10.0+40075+a21479b4.4
  • pygtk2 Rocky Linux 8 2.24.0-25.module+el8.9.0+1723+9bc93544
  • pygobject2 Rocky Linux 8 2.28.7-5.module+el8.10.0+1927+52edb5a0

rocky linux advisories RLSA-2026:62507

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-2026-18306 updated cvss 7.8

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

  • Red Hat Enterprise Linux 6 gimp, gimp-libs, gimp-devel-tools, gimp-help-browser
    affected: workaround, no fix planned “To mitigate this issue, users should avoid opening untrusted SGI image files with GIMP. If GIMP is not required, consider removing the `gimp` package from the system.”
  • Red Hat Enterprise Linux 7 gimp, gimp-libs, gimp-devel-tools
    affected: workaround, no fix available “To mitigate this issue, users should avoid opening untrusted SGI image files with GIMP. If GIMP is not required, consider removing the `gimp` package from the system.”
  • Red Hat Enterprise Linux AppStream (v. 8) pygtk2 2.24.0-25.module+el8.9.0+21228+8e80d31d, gimp 2.8.22-26.module+el8.10.0+24752+9e6a86ef.8, pygobject2 2.28.7-5.module+el8.10.0+22676+becd68d6, gimp-libs 2.8.22-26.module+el8.10.0+24752+9e6a86ef.8, python2-cairo 1.16.3-7.module+el8.10.0+22676+becd68d6, pygtk2-codegen 2.24.0-25.module+el8.9.0+21228+8e80d31d, +3 more
    fixed: vendor fix “To mitigate this issue, users should avoid opening untrusted SGI image files with GIMP. If GIMP is not required, consider removing the `gimp` package from the system.” RHSA-2026:62507
  • 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 “To mitigate this issue, users should avoid opening untrusted SGI image files with GIMP. If GIMP is not required, consider removing the `gimp` package from the system.” RHSA-2026:61587
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) gimp 2.99.8-4.el9_2.7, gimp-libs 2.99.8-4.el9_2.7
    fixed: vendor fix “To mitigate this issue, users should avoid opening untrusted SGI image files with GIMP. If GIMP is not required, consider removing the `gimp` package from the system.” RHSA-2026:93589
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) gimp 2.99.8-4.el9_4.19, gimp-libs 2.99.8-4.el9_4.19
    fixed: vendor fix “To mitigate this issue, users should avoid opening untrusted SGI image files with GIMP. If GIMP is not required, consider removing the `gimp` package from the system.” RHSA-2026:80509
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) gimp 2.99.8-4.el9_6.20, gimp-libs 2.99.8-4.el9_6.20
    fixed: vendor fix “To mitigate this issue, users should avoid opening untrusted SGI image files with GIMP. If GIMP is not required, consider removing the `gimp` package from the system.” RHSA-2026:73768

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.