Disclosure summary
In CPython 3.13 and earlier, the tarfile module's data and tar extraction filters are vulnerable to crafted archives containing a hard link to a symbolic link. Such archives may cause extraction to modify the permissions or modification time of a file outside the destination directory, or expose the contents of that file within the extracted tree.
Source-reported weakness categories
CWE-59
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-82049
Open original source · Updated Oct 10, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
Original records & references
- NIST NVD record
- CVE Program record
- github.com
- github.com
- github.com
- github.com
- github.com
- github.com
- github.com
- github.com
- github.com
- github.com
- mail.python.org
PUBLISHED 2026-09-14T15:17:50-04:00
MODIFIED 2026-10-10T21:16:25-04:00
INGESTED 2026-10-10T21:20:10-04:00