Log in Start free

Vulnerability · Published Aug 28, 2026 · Assigned by redhat

CVE-2026-82324Gimp: heap out-of-bounds reads in iff/ilbm loader from ham row size mismatch and nplanes=0

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 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 91.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in the file-iff (IFF/ILBM) plugin in GIMP. When processing a specially crafted IFF/ILBM image file, the plugin does not properly validate the HAM row size and improperly handles cases where the number of color planes (nPlanes) is zero. This causes a row size mismatch that bypasses memory bounds checking, resulting in heap out-of-bounds reads. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of heap memory contents.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12gimpno fix listedDEBIAN-CVE-2026-82324
Debian:13gimpno fix listedDEBIAN-CVE-2026-82324
Debian:14gimp3.2.6-1DEBIAN-CVE-2026-82324
Ubuntu:26.04:LTSgimpno fix listedUBUNTU-CVE-2026-82324
Ubuntu:26.10gimpno fix listedUBUNTU-CVE-2026-82324

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