Arbitrary file upload in Python
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. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (5.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Python — versions 3.15.0
- Python Software Foundation Cpython — versions 3.14.0, 0, 3.13.0
Weakness classification (CWE)
References
- github.com/python/cpython/pull/143934 (Patch, patch, Issue Tracking)
- github.com/python/cpython/issues/141707 (issue-tracking, Issue Tracking)
- mail.python.org/archives/list/security-announce@python.org/thread/EOMI5I66ZMKQ2… (vendor-advisory, Mailing List, Vendor Advisory)
- github.com/python/cpython/commit/42d754e34c06e57ad6b8e7f92f32af679912d8ab (Patch, patch)
- github.com/python/cpython/commit/7ad3093d76a748af55bdb1d2e8aad3638163b017 (Patch, patch)
- github.com/python/cpython/commit/ae99fe3a33b43e303a05f012815cef60b611a9c7 (Patch, patch)
- github.com/python/cpython/commit/72dde1016493c52abe857fc4a7bf6c40138b4114 (Patch, patch)
- github.com/python/cpython/commit/9a23b753552afa28e3a2f4d8863572fc66479406 (Patch, patch)
- github.com/python/cpython/commit/d10950739a78f54d0718d88fb5a868374603c084 (Patch, patch)
Frequently asked questions
- What is CVE-2025-13462?
- CVE-2025-13462 is a low-severity vulnerability in Python, classified under Improper Input Validation. CVSS score: 3.3/10. Published 2026-03-12.
- How severe is CVE-2025-13462?
- Low severity. CVSS v3 base score is 3.3 out of 10.