CVE-2025-13462

CVE-2025-13462 is a low-severity vulnerability in Python with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

• Severity: Low (CVSS 3.x base score 3.3)
• CVSS v4: 2.0
• EPSS exploit prediction: 0% (6th percentile)
• Actively exploited: Not listed in CISA KEV
• EU (EUVD) id: EUVD-2025-208613
• Weakness: CWE-20
• Affected product: Python
• Published: 2026-03-12
• Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.

How severe is CVE-2025-13462?

CVE-2025-13462 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-13462 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-13462?

CVE-2025-13462 primarily affects Python. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-13462?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-13462 have an EU (EUVD) identifier?

Yes. CVE-2025-13462 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208613.

When was CVE-2025-13462 published?

CVE-2025-13462 was published on 2026-03-12 and last updated on 2026-06-17.

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/

Affected products (8)

• cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
• cpe:2.3:a:python:python:3.15.0:alpha1:*:*:*:*:*:*
• cpe:2.3:a:python:python:3.15.0:alpha2:*:*:*:*:*:*
• cpe:2.3:a:python:python:3.15.0:alpha3:*:*:*:*:*:*
• cpe:2.3:a:python:python:3.15.0:alpha4:*:*:*:*:*:*
• cpe:2.3:a:python:python:3.15.0:alpha5:*:*:*:*:*:*
• cpe:2.3:a:python:python:3.15.0:alpha6:*:*:*:*:*:*
• cpe:2.3:a:python:python:3.15.0:alpha7:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

• 41.63.62.103 (ipv4-addr)
• 203.192.232.180 (ipv4-addr)
• 149.86.233.213 (ipv4-addr)
• 141.109.168.26 (ipv4-addr)
• 141.109.168.107 (ipv4-addr)
• 125.212.235.194 (ipv4-addr)
• 120.28.109.188 (ipv4-addr)
• 103.61.123.132 (ipv4-addr)