CVE-2025-13462
Low
No strong exploitation signal.
CVSS base
3.3
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS — probability of exploitation (30 days)
0.2%
6.1th percentile
CISA KEV
Not listed
Weakness / dates
CWE-20
Published 2026-03-12 · modified 2026-08-13
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | L | Low |
| Availability | N | None |
Timeline
- 2026-03-12 — Published (NVD)
- 2026-08-13 — Last modified (NVD)
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.
Affected
References
- https://github.com/python/cpython/commit/42d754e34c06e57ad6b8e7f92f32af679912d8ab
- https://github.com/python/cpython/commit/72dde1016493c52abe857fc4a7bf6c40138b4114
- https://github.com/python/cpython/commit/7ad3093d76a748af55bdb1d2e8aad3638163b017
- https://github.com/python/cpython/commit/9a23b753552afa28e3a2f4d8863572fc66479406
- https://github.com/python/cpython/commit/ae99fe3a33b43e303a05f012815cef60b611a9c7
- https://github.com/python/cpython/commit/d10950739a78f54d0718d88fb5a868374603c084
- https://github.com/python/cpython/issues/141707
- https://github.com/python/cpython/pull/143934
- https://mail.python.org/archives/list/security-announce@python.org/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/