CVE-2025-13462: Vulnerability in Python Software Foundation CPython
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.
AI Analysis
Technical Summary
CVE-2025-13462 describes a vulnerability in the CPython tarfile module where normalization of AREGTYPE (\x00) blocks to DIRTYPE occurs improperly during processing of multi-block members such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This behavior can cause the tarfile module to misinterpret crafted tar archives relative to other implementations. The vulnerability is present in CPython versions 3.14.0 and 3.15.0a1. The CVSS 4.0 base score is 2.0, indicating low severity, with an attack vector requiring local access and high attack complexity.
Potential Impact
The vulnerability may cause the tarfile module to misinterpret crafted tar archives, potentially leading to incorrect processing or handling of archive contents. However, the low CVSS score and lack of known exploits in the wild suggest limited impact. There is no indication of remote exploitation or privilege escalation from the provided data.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the Python Software Foundation advisory for current remediation guidance. Until a fix is available, cautious handling of tar archives and avoiding untrusted inputs may reduce risk.
CVE-2025-13462: Vulnerability in Python Software Foundation CPython
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 v4.0
Score 2.0low
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-13462 describes a vulnerability in the CPython tarfile module where normalization of AREGTYPE (\x00) blocks to DIRTYPE occurs improperly during processing of multi-block members such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This behavior can cause the tarfile module to misinterpret crafted tar archives relative to other implementations. The vulnerability is present in CPython versions 3.14.0 and 3.15.0a1. The CVSS 4.0 base score is 2.0, indicating low severity, with an attack vector requiring local access and high attack complexity.
Potential Impact
The vulnerability may cause the tarfile module to misinterpret crafted tar archives, potentially leading to incorrect processing or handling of archive contents. However, the low CVSS score and lack of known exploits in the wild suggest limited impact. There is no indication of remote exploitation or privilege escalation from the provided data.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the Python Software Foundation advisory for current remediation guidance. Until a fix is available, cautious handling of tar archives and avoiding untrusted inputs may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- PSF
- Date Reserved
- 2025-11-19T22:05:07.578Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69b302c82f860ef943d65de2
Added to database: 3/12/2026, 6:15:36 PM
Last enriched: 6/10/2026, 10:47:08 PM
Last updated: 6/12/2026, 12:11:39 PM
Views: 315
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