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Vulnerability · Published Aug 24, 2026 · Assigned by redhat

CVE-2026-78475Gimp: unbounded stack vla and 21-byte stack over-read in pix (esm) loader

Medium 6.1

In plain English

A medium-severity out-of-bounds read in GIMP from GNOME. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.3%top 81.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12gimpno fix listedDEBIAN-CVE-2026-78475
Debian:13gimp3.0.4-3+deb13u11DEBIAN-CVE-2026-78475
Debian:14gimp3.2.6-1DEBIAN-CVE-2026-78475
Ubuntu:26.04:LTSgimpno fix listedUBUNTU-CVE-2026-78475
Ubuntu:26.10gimpno fix listedUBUNTU-CVE-2026-78475

Affected products (as reported)

VendorProductVersions
GNOME GIMP 3.0.0 – before *
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

References