CVE-2026-59090

A flaw was found in GIMP's PSD file format plugin. This vulnerability, an unsigned integer underflow in the `block_rem` variable, occurs when a user opens a specially crafted `.psd` image file. The underflow leads to parser confusion, enabling an attacker to inject arbitrary data as layer resource blocks. This can ultimately result in arbitrary code execution, allowing the attacker to run malicious code on the victim's system.

CVSS 3.1

9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-25)

CWE

CWE-191

Published

2026-08-10

Modified

2026-10-12

Record from

the NVD, synced 2026-10-19

Affected

• gimp:gimp
• redhat:enterprise_linux

References

• https://access.redhat.com/errata/RHSA-2026:61587
• https://access.redhat.com/errata/RHSA-2026:73768
• https://access.redhat.com/errata/RHSA-2026:80509
• https://access.redhat.com/security/cve/CVE-2026-59090
• https://bugzilla.redhat.com/show_bug.cgi?id=2496584

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