Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-82035

PyMuPDF 1.28.2 Path Traversal via extract_objects() Font Branch

CVSS 4.0 7.1 HIGHCVSS 3.1 7.1 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-82035

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-82035

Published

PyMuPDF

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "vendor": "PyMuPDF",
                    "product": "PyMuPDF",
                    "packageURL": "pkg:github/pymupdf/PyMuPDF",
                    "repo": "https://github.com/pymupdf/PyMuPDF",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver",
                            "lessThanOrEqual": "1.8.2"
                        },
                        {
                            "status": "unaffected",
                            "version": "b2c8f3a859fed35c379a44df566f770dc3e18605",
                            "versionType": "git"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON