Python CPython up to 3.14.x Tarfile comparison

CVSS Meta Temp Score
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CTI Interest Score
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2.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Python CPython up to 3.14.x. This impacts an unknown function of the component Tarfile Module. Such manipulation leads to comparison. This vulnerability is traded as CVE-2025-13462. An attack has to be approached locally. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Python CPython up to 3.14.x and classified as problematic. Affected by this issue is some unknown functionality of the component Tarfile Module. The manipulation with an unknown input leads to a comparison vulnerability. Using CWE to declare the problem leads to CWE-697. The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses. Impacted is integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-13462 since 11/19/2025. The exploitation is known to be difficult. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 302190 (Linux Distros Unpatched Vulnerability : CVE-2025-13462), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.15.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (302190), EUVD (EUVD-2025-208613) and CERT Bund (WID-SEC-2026-0722). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • SUSE openSUSE
  • Open Source Python

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.8

VulDB Base Score: 2.5
VulDB Temp Score: 2.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Comparison
CWE: CWE-697
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 302190
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-13462

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: CPython 3.15.0
Patch: github.com

Timelineinfo

11/19/2025 CVE reserved
03/12/2026 +113 days Advisory disclosed
03/12/2026 +0 days VulDB entry created
08/13/2026 +154 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 141707
Status: Confirmed

CVE: CVE-2025-13462 (🔒)
GCVE (CVE): GCVE-0-2025-13462
GCVE (VulDB): GCVE-100-350744
EUVD: 🔒
CERT Bund: WID-SEC-2026-0722 - CPython: Schwachstelle ermöglicht Manipulation von Dateien

Entryinfo

Created: 03/12/2026 19:32
Updated: 08/13/2026 04:36
Changes: 03/12/2026 19:32 (69), 03/13/2026 15:39 (7), 03/15/2026 02:17 (1), 03/16/2026 10:01 (2), 04/24/2026 14:05 (1), 06/06/2026 19:13 (11), 06/11/2026 17:19 (8), 08/13/2026 04:36 (2)
Complete: 🔍
Cache ID: 216::103

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