LLMMedium
CVE-2026-40505: MuPDF before 1.27 contains an ANSI injection vulnerability in mutool that allows attackers to inject…
- Occurred
- Apr 16, 2026
- Published
- Apr 16, 2026
- Source
- NVD CVE
Summary
MuPDF before 1.27 contains an ANSI injection vulnerability in mutool that allows attackers to inject arbitrary ANSI escape sequences through crafted PDF metadata fields. Attackers can embed malicious ANSI escape codes in PDF metadata that are passed unsanitized to terminal output when running mutool info, enabling them to manipulate terminal display for social engineering attacks such as presenting fake prompts or spoofed commands.
Tags
- CVE
- CVE-2026-40505
- cvss:LOW
Classification
Category confidence: 70%
Severity confidence: 80%
Rationale: This is a software vulnerability (ANSI injection) in a PDF rendering tool, not an AI/LLM incident, but it involves terminal manipulation which is a security issue.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8