CVE catalog

CVE-2026-78465

Severity: High · CVSS 7CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: Jul 24, 2026, 12:00:00 AM UTC
Updated: Aug 24, 2026, 5:18:20 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.28% · Oct 25, 2026

A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large dimensions, the calculation exceeds the 32-bit integer limit and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when the plugin subsequently writes image data into the undersized buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	gimp	sid	`3.2.6-1`	fixed
Debian	gimp	forky	`3.2.6-1`	fixed
Debian	gimp	trixie	`3.0.4-3+deb13u10`	vulnerable
Debian	gimp	trixie-security	`3.0.4-3+deb13u11`	fixed
Debian	gimp	bookworm	`2.10.34-1+deb12u10`	vulnerable
Debian	gimp	bookworm-security	`2.10.34-1+deb12u10`	vulnerable
Cpe	gimp	Not reported	Not reported	unknown
Opensuse	gimp	leap 16.0	`3.0.8-bp160.9.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	gimp	source	sid	`3.2.6-1`	not yet assigned	Not reported	[1145875]
Debian	gimp	source	forky	`3.2.6-1`	not yet assigned	Not reported	[1145875]
Debian	gimp	source	trixie	`3.0.4-3+deb13u11`	not yet assigned	Not reported	[1145875]
Debian	gimp	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1145875]
Opensuse	gimp	rpm	leap 16.0	`3.0.8-bp160.9.1`	Not reported	OPENSUSE-SU-2026:21869-1	Not reported

[Debian bug #1145875]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gimp]Affected
Details (4)
- 2.10.34-1+deb12u10 · amd64 · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · arm64 · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · amd64 · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · arm64 · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
[gimp-data]Affected
Source package: [gimp]
Details (4)
- 2.10.34-1+deb12u10 · all · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · all · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · all · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · all · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
[libgimp2.0]Affected
Source package: [gimp]
Details (4)
- 2.10.34-1+deb12u10 · amd64 · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · arm64 · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · amd64 · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · arm64 · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
[libgimp2.0-dev]Affected
Source package: [gimp]
Details (4)
- 2.10.34-1+deb12u10 · amd64 · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · arm64 · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · amd64 · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · arm64 · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
[libgimp2.0-doc]Affected
Source package: [gimp]
Details (4)
- 2.10.34-1+deb12u10 · all · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · all · bookworm
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · all · bookworm-security
  Affected
  nvd · gimp · debian · bookworm
- 2.10.34-1+deb12u10 · all · bookworm-security
  Affected
  nvd · gimp · debian · bookworm

Observed: Oct 27, 2026, 7:11:56 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]