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Fencer Vulns
high 8.4

CVE-2026-59090 json

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

published 2026-08-10 2 mo ago modified 2026-11-04 4 d ago also EUVD-2026-55616

cvss
8.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 9 2:3.0.4-4.el9_8.10
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 2:2.99.8-4.el9_2.7
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 2:2.99.8-4.el9_4.19
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 2:2.99.8-4.el9_6.20
  • gimp Debian 13 3.0.4-3+deb13u10
  • gimp Debian 14 3.2.6-1

debian advisories DEBIAN-CVE-2026-59090

  • gimp RHEL 9 2:3.0.4-4.el9_8.10
  • gimp-libs RHEL 9 2:3.0.4-4.el9_8.10
  • gimp RHEL 9.4 E4S 2:2.99.8-4.el9_4.19
  • gimp-libs RHEL 9.4 E4S 2:2.99.8-4.el9_4.19
  • gimp RHEL 9.6 EUS 2:2.99.8-4.el9_6.20
  • gimp-libs RHEL 9.6 EUS 2:2.99.8-4.el9_6.20

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

  • gimp SLE Workstation Extension 15 SP7, SLE Module for Package Hub 15 SP7 2.10.30-150400.3.74.1
  • gimp SLE Workstation Extension 15 SP7, SLE Module for Package Hub 15 SP7 2.10.30-150400.3.61.1

suse advisories SUSE-SU-2026:4309-1SUSE-SU-2026:3688-1

  • gimp openSUSE Tumbleweed 3.2.4-4.1

opensuse advisories openSUSE-SU-2026:11547-1

  • 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-2026-59090 updated cvss 8.4

gimp: GIMP: Arbitrary code execution in PSD plugin due to unsigned underflow

  • 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 7 gimp, gimp-libs, gimp-devel-tools Red Hat Enterprise Linux 8 gimp, pygtk2, gimp-libs, pygobject2, python2-cairo, pygtk2-codegen, +3 more
    affected: workaround, no fix available
  • 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 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 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 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 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
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2 mo ago

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.gnome.org https://gitlab.gnome.org/GNOME/gimp/-/work_items/16509 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.4 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H
NVD 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8

Classification

Weakness
  • CWE-191 Integer Underflow (Wrap 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.