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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.

Verisq™ 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

  1. Deploy the GIMP 2.10.34 (or later) update immediately.
  2. Verify patch deployment across all endpoints via automated inventory tools.
  3. Map the vulnerability to SOC 2 CC6.1 (Change Management) and record remediation evidence in your compliance repository.
  4. 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 Verisq Intelligence Brief is an independent analysis. Read the original reporting at the link above.

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