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GIMP CVE-2026-59090

| EUVDEUVD-2026-55616 CRITICAL
Integer Underflow (CWE-191)
2026-08-10 redhat GHSA-gfh5-q868-q4pw
9.9
CVSS 3.1 · NVD
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Severity by source

Vendor (redhat) PRIMARY
HIGH
qualitative
NVD
9.9 CRITICAL
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
vuln.today AI
7.8 HIGH

Local crafted-file parsing requires the user to open the .psd (AV:L/UI:R), needs no prior privileges (PR:N), stays in the app's process (S:U), and yields full code execution (C/I/A:H).

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
7.3 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H
Red Hat
8.4 HIGH
qualitative

Primary rating from Vendor (redhat).

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

6
Analysis Updated
Aug 19, 2026 - 20:28 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Aug 19, 2026 - 20:22 vuln.today
cvss_changed
Severity Changed
Aug 19, 2026 - 20:22 NVD
HIGH CRITICAL
CVSS changed
Aug 19, 2026 - 20:22 NVD
8.4 (HIGH) 9.9 (CRITICAL)
Analysis Generated
Aug 10, 2026 - 13:07 vuln.today
CVE Published
Aug 10, 2026 - 12:10 cve.org
HIGH 8.4

DescriptionNVD

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.

AnalysisAI

Arbitrary code execution in GIMP's PSD import plugin allows an attacker to run code in the context of the user who opens a maliciously crafted .psd file. An unsigned integer underflow in the plugin's block_rem length variable (CWE-191) corrupts parsing of Photoshop layer resource blocks, letting attacker-controlled data be treated as trusted structures. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Craft malicious .psd file
Delivery
Deliver via email or download
Exploit
Victim opens file in GIMP PSD plugin
Execution
Trigger unsigned underflow in block_rem
Persist
Parser injects fake layer resource blocks
Impact
Execute arbitrary code as user

Vulnerability AssessmentAI

Exploitation Exploitation requires the victim to open an attacker-crafted .psd file in GIMP using the PSD import plugin, which is a standard bundled plugin, so no unusual configuration is needed on the target side. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The signals conflict and should be reconciled before treating the 9.9 as face value. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker emails a graphic designer a .psd file disguised as a legitimate project asset, or seeds it on a file-sharing site. When the victim opens it in GIMP, the PSD plugin's block_rem counter underflows, the parser misreads attacker-controlled bytes as layer resource blocks, and code executes with the victim's privileges. …
Remediation Upstream fix available (tracked in GNOME GIMP work item 16509); a specific released patched GIMP version is not stated in the available data, so apply your Linux distribution's GIMP security update as soon as it ships and monitor Red Hat's advisory (https://access.redhat.com/security/cve/CVE-2026-59090) and Bugzilla 2496584 for the exact fixed package NVR. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all systems running GIMP across design, engineering, and marketing departments; collect version information using gimp --version and cross-reference against GNOME's GIMP security advisories to identify affected systems. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Module for Package Hub 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 Affected
SUSE Linux Enterprise Workstation Extension 15 SP7 Affected

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CVE-2026-59090 vulnerability details – vuln.today

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