CVE-2026-82035 PyMuPDF - Path Traversal

PyMuPDF <= 1.28.2 contains a path traversal vulnerability caused by improper sanitization of BaseFont names in extract_objects() font branch, letting attackers write arbitrary files outside the output directory, exploit requires crafted document input.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Write, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to a version including commit b2c8f3a or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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