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CVE-2026-59090 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CNA: [email protected]CVSS-B:8.4 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16509	CISA-ADP	ExploitMitigationVendor Advisory
https://access.redhat.com/errata/RHSA-2026:61587	[email protected]
https://access.redhat.com/security/cve/CVE-2026-59090	[email protected]	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2496584	[email protected]	Issue TrackingVendor Advisory
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16509	[email protected]	ExploitMitigationVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-191	Integer Underflow (Wrap or Wraparound)	[email protected]

Affected Products

Product	Versions
gimp gimp	3.3.1
CPE cpe:2.3:a:gimp:gimp:3.3.1:::::::* Remediation No remediation found in references.
redhat enterprise linux	7.0 8.0 9.0
CPE cpe:2.3:o:redhat:enterprise_linux:7.0:::::::* cpe:2.3:o:redhat:enterprise_linux:8.0:::::::* cpe:2.3:o:redhat:enterprise_linux:9.0:::::::* Remediation No remediation found in references.

Change History

9 change records found show changes

Date	Action	Recorded By
Aug 31, 2026	CVE Modified	CISA-ADP
Aug 31, 2026	CVE Modified	[email protected]
Aug 21, 2026	CVE Modified	[email protected]
Aug 19, 2026	Initial Analysis	[email protected]
Aug 12, 2026	CVE Modified	CISA-ADP
Aug 12, 2026	CVE Modified	CISA-ADP
Aug 11, 2026	CVE Modified	CISA-ADP
Aug 10, 2026	CVE Modified	CISA-ADP
Aug 10, 2026	New CVE Received	[email protected]