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high · CVSS 8.4

CVE-2026-59090

Gimp: gimp: arbitrary code execution in psd plugin due to unsigned underflow

Published 10 Aug 2026 · Source updated 4 Nov 2026 · Retrieved 2026-11-04 23:20 UTC

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What happened?

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.

Description supplied by CVE Program. Formatting is simplified; follow the original advisory for full details.

Affected software and versions

Source-provided software and version information
SoftwareVersion informationFixed version
gimpaffected: 3.3.1See vendor advisory
gimpRed Hatunaffected: 2:3.0.4-4.el9_8.10 to < *See vendor advisory
gimpRed Hatunaffected: 2:2.99.8-4.el9_2.7 to < *See vendor advisory
gimpRed Hatunaffected: 2:2.99.8-4.el9_4.19 to < *See vendor advisory
gimpRed Hatunaffected: 2:2.99.8-4.el9_6.20 to < *See vendor advisory
gimpRed HatDefault status: unknownSee vendor advisory
gimpRed HatDefault status: affectedSee vendor advisory
gimpRed HatDefault status: affectedSee vendor advisory

Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.

Is it being exploited?

This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.

CISA data retrieved 2026-11-06 16:38 UTC. Check CISA ↗

How to respond

  1. Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
  2. Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
  3. Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.

Sources and remediation references

This public advisory does not determine whether a particular server is affected. Records are refreshed as sources change; verify urgent decisions against the original advisory.

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