EUVD-2026-23147
GHSA-hj44-m5xv-x75q
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Primary rating from NVD.
CVSS VectorNVD
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
7DescriptionCVE.org
MuPDF mutool does not sanitize PDF metadata fields before writing them to terminal output, allowing attackers to inject arbitrary ANSI escape sequences through crafted PDF metadata. Attackers can embed malicious ANSI escape codes in PDF metadata that are passed unsanitized to the terminal when running mutool info, enabling them to clear the terminal display and render arbitrary text for social engineering attacks such as presenting fake prompts or spoofed commands.
AnalysisAI
MuPDF mutool fails to sanitize PDF metadata before displaying it in terminal output, allowing local attackers to inject ANSI escape sequences through crafted PDF files. When a user runs mutool info on a malicious PDF, embedded escape codes can clear the terminal and display fabricated text for social engineering attacks such as fake login prompts or spoofed shell commands. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The vulnerability requires the following specific conditions: the user must execute mutool info (or a similar mutool command that outputs metadata) on an attacker-supplied PDF file containing malicious ANSI escape sequences in metadata fields. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.3 score reflects low severity with low-risk attack parameters: local access vector (AV:L), low complexity (AC:L), no privileges required (PR:N), but mandatory user interaction (UI:R) and limited impact (only integrity; no confidentiality or availability). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker creates a PDF with a crafted Title metadata field containing ANSI escape codes, such as \033[2J (clear screen) followed by fake text resembling a login prompt. The attacker distributes this PDF via email or file sharing. … |
| Remediation | Update MuPDF to a version incorporating commit 0f17d789fe8c29b41e47663be82514aaca3a4dfb or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Vendor StatusVendor
SUSE
Severity: LowShare
External POC / Exploit Code
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