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VULNERABILITIES

CVE-2026-82035 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/pymupdf/PyMuPDF/commit/b2c8f3a859fed35c379a44df566f770dc3e18605 [email protected]
https://www.vulncheck.com/advisories/pymupdf-path-traversal-via-extract-objects-font-branch [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-82035
NVD Published Date:
Sep 14, 2026
NVD Last Modified:
Sep 24, 2026
Source:
[email protected]
CVE-2026-82035 Details - Not Deferred