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VULNERABILITY BRIEF🟠 High Vulnerability

Critical Integer Overflow in GIMP TIF Parsing (CVE‑2026‑18304) Enables Remote Code Execution

A newly disclosed integer overflow in GIMP’s TIF file parser (CVE‑2026‑18304, CVSS 7.8) lets attackers execute code when a crafted image is opened. For compliance teams, the flaw underscores the need for robust change‑management mapping and auditable patch evidence.

LiveThreat™ Intelligence · 📅 July 30, 2026· 📰 zerodayinitiative.com
🟠
Severity
High
VU
Type
Vulnerability
🎯
Confidence
High
🏢
Affected
1 sector(s)
✅
Actions
3 recommended
📰
Source
zerodayinitiative.com

Critical Integer Overflow in GIMP TIF Parsing (CVE‑2026‑18304) Enables Remote Code Execution

What It Is — GIMP’s TIF file parser fails to validate size fields, causing an integer overflow that can corrupt a buffer and allow arbitrary code execution. The flaw is triggered when a user opens a crafted TIF image.

Exploitability — CVSS 7.8 (AV:L/AC:L/PR:N/UI:R). No public exploit code, but the vulnerability is exploitable with low effort once a malicious file is opened.

Affected Products — GIMP (all versions prior to the 2.10.34 release that includes the fix).

Why It Matters for Compliance & Audit Readiness

  • Control Mapping: The issue highlights gaps in your change‑management and software‑hardening controls (SOC 2 CC6.1). Mapping this CVE to the relevant control demonstrates due‑diligence.
  • Continuous Evidence: Capturing patch‑status evidence in a centralized Trust Center provides auditors with verifiable proof that remediation was performed promptly.
  • Risk of Data Exposure: Successful exploitation can lead to unauthorized code running in the context of the user, potentially exposing sensitive data or compromising downstream services—an audit red flag for data‑handling controls.

Recommended Actions

  • Deploy the GIMP 2.10.34 (or later) update immediately.
  • Verify patch deployment across all endpoints via automated inventory tools.
  • Map the vulnerability to SOC 2 CC6.1 (Change Management) and record remediation evidence in your compliance repository.
  • Review file‑type handling policies and enforce least‑privilege execution for image‑processing workloads.

Source: Zero Day Initiative Advisory ZDI‑26‑457

📰 Original Source
http://www.zerodayinitiative.com/advisories/ZDI-26-457/ ↗

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

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