What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-28 · updated 2026-08-31
• Weakness: CWE-125

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 products

• GIMP: through 3.3.1
• Red Hat Enterprise Linux: 6.0, 7.0, 8.0, 9.0

References

• https://access.redhat.com/security/cve/CVE-2026-82324
• https://bugzilla.redhat.com/show_bug.cgi?id=2525609
• https://gitlab.gnome.org/GNOME/gimp/-/work_items/16584

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