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🛡️ VULNERABILITY BRIEF🟠 High🛡️ Vulnerability

Remote Code Execution via GIMP ANI File Parsing (CVE-2026-4151) Threatens Design Workflows

A critical integer‑overflow bug in GIMP’s ANI file parser (CVE‑2026‑4151) allows remote code execution when a crafted file is opened. The flaw impacts all unpatched GIMP installations and poses a supply‑chain risk for design‑heavy enterprises and SaaS image‑processing providers.

🛡️ LiveThreat™ Intelligence · 📅 March 20, 2026· 📰 zerodayinitiative.com
🟠
Severity
High
🛡️
Type
Vulnerability
🎯
Confidence
High
🏢
Affected
2 sector(s)
Actions
5 recommended
📰
Source
zerodayinitiative.com

Remote Code Execution via GIMP ANI File Parsing (CVE‑2026‑4151) Threatens Design Workflows

What It Is – A newly disclosed integer‑overflow flaw in GIMP’s handling of Windows ANI animation files allows an attacker to execute arbitrary code on a victim’s machine. The vulnerability (CVE‑2026‑4151) scores 7.8 CVSS and requires the user to open or view a crafted ANI file.

Exploitability – No public exploit code is known, but the vulnerability is trivially exploitable once a malicious file is opened. The CVSS vector (AV:L/AC:L/PR:N/UI:R) reflects the need for user interaction but low technical complexity.

Affected Products – GIMP (all versions prior to the March 2026 security update).

TPRM Impact – Organizations that embed GIMP in design pipelines, content‑creation SaaS, or provide image‑processing services to third‑party clients face a supply‑chain risk: a compromised workstation can be used to inject malware into downstream deliverables or exfiltrate proprietary assets.

Recommended Actions

  • Deploy the GIMP patch released on 2026‑03‑19 (commit 09e5459).
  • Block or sandbox ANI files on corporate endpoints.
  • Conduct a rapid inventory of all workstations running GIMP and verify version compliance.
  • Update security awareness training to flag unexpected image files, especially from untrusted sources.
  • Monitor process creation events for unexpected GIMP executions and enable EDR alerts on anomalous behavior.

Source: Zero Day Initiative advisory ZDI‑26‑218

📰 Original Source
http://www.zerodayinitiative.com/advisories/ZDI-26-218/

This LiveThreat Intelligence Brief is an independent analysis. Read the original reporting at the link above.

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