Description
The "tarfile" module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.
Metrics
CVSS 3.1 3.3/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Python Software Foundation | CPython | < 3.10.21; >= 3.11.0, < 3.11.16; >= 3.12.0, < 3.12.14; >= 3.13.0, < 3.13.13; >= 3.14.0, < 3.14.4; >= 3.15.0a1, < 3.15.0a8 |
References
- https://github.com/python/cpython/commit/42d754e34c06e57ad6b8e7f92f32af679912d8abPatch
- https://github.com/python/cpython/commit/72dde1016493c52abe857fc4a7bf6c40138b4114Patch
- https://github.com/python/cpython/commit/7ad3093d76a748af55bdb1d2e8aad3638163b017Patch
- https://github.com/python/cpython/commit/9a23b753552afa28e3a2f4d8863572fc66479406Patch
- https://github.com/python/cpython/commit/ae99fe3a33b43e303a05f012815cef60b611a9c7Patch
- https://github.com/python/cpython/commit/d10950739a78f54d0718d88fb5a868374603c084Patch
- https://github.com/python/cpython/issues/141707Issue Tracking
- https://github.com/python/cpython/pull/143934Issue Tracking, Patch
- https://mail.python.org/archives/list/security-announce@python.org/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/Mailing List, Vendor Advisory
Timeline
- Published
- Mar 12, 2026
- Last modified
- Aug 13, 2026
- NVD status
- Analyzed