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Fencer Vulns
medium 6.1

CVE-2026-78475 json

Gimp: unbounded stack vla and 21-byte stack over-read in pix (esm) loader

published 2026-08-24 2 mo ago modified 2026-11-06 3 d ago also EUVD-2026-65004

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits
0
none known

Summary

A flaw was found in the file-pix (ESM) plugin in GIMP. When processing a specially crafted PIX image file, the plugin allocates a Variable-Length Array (VLA) on the stack without proper bounds checking, causing an unbounded stack allocation followed by a 21-byte stack over-read. This can result in a denial of service due to stack exhaustion and a limited information disclosure of stack memory contents into an intermediate file.

Patch / fix

  • gimp Debian 13 3.0.4-3+deb13u11
  • gimp Debian 14 3.2.6-1

debian advisories DEBIAN-CVE-2026-78475

  • gimp openSUSE Leap 16.0 3.0.8-bp160.9.1
  • gimp openSUSE Tumbleweed 3.2.6-1.1

opensuse advisories openSUSE-SU-2026:21869-1openSUSE-SU-2026:11771-1

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-2026-78475 updated cvss 6.1

gimp: unbounded stack VLA and 21-byte stack over-read in PIX (ESM) loader

  • Red Hat Enterprise Linux 9 gimp, gimp-libs
    affected: workaround, no fix available “To mitigate this vulnerability, do not open PIX files from untrusted sources with GIMP.”
  • Red Hat Enterprise Linux 6 gimp, gimp-libs, gimp-devel-tools, gimp-help-browser 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
partial
Assessed
2 mo ago

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Affected products

  • GNOME GIMP
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness

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.