CVE-2025-13462
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. Limited direct impact.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 2.0 LOW (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Analyzed
Affected
- Python < 3.13.13
- Python < 3.14.4
- Python 3.15.0
Attack profile CVSS 4.0 · 2.0
- Attack vector
- Local
- Complexity
- High
- Attack requirements
- Present
- Privileges needed
- Low
- User interaction
- None
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Raw vector
CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-13462.md and follow it. Check whether this project is affected by CVE-2025-13462. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- 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/pull/143934
- https://mail.python.org/archives/list/[email protected]/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/
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/[email protected]/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/