CVE-2025-13462
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.
Does this matter?
Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 2.0 LOWCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.17% probability · 6th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-74, CWE-434
- Affected
- python/python
- Source
- cna@python.org
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.