Answer in brief
CVE-2026-82035 records a High severity (CVSS 7.1) vulnerability in PyMuPDF 1.28.2 Path Traversal via extract_objects() Font Branch. The current sources do not mark it as known exploited. The current feed maps PyMuPDF/PyMuPDF (generic), PyMuPDF/PyMuPDF (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps PyMuPDF/PyMuPDF (generic), PyMuPDF/PyMuPDF (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| PyMuPDF/PyMuPDFgeneric | 0 | Not reported |
| PyMuPDF/PyMuPDFgeneric | >=0 <=1.8.2 | Not reported |
Published upstream
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 14, 2026
PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.
Quoted source text, attributed separately from HOL analysis.