CVE-2026-59090
High
Description
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.
SeverityHigh
CVSS8.4
Exploit probability—
Product
Gimp
PublishedAug 10, 2026
First seenAug 10, 2026
Weakness typeCWE-191CWE-191
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gimp gimp | 3.3.1 | — |
| redhat enterprise_linux | 7.0, 8.0, 9.0 | — |
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