CVE-2026-87910 tarfile hardlink fallback ignores custom extraction filter rejection via None

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was...

Unchecked Return Value

Overview Affected versions of this package are vulnerable to Unchecked Return Value in the tarfile when extracting an archive containing a link on systems that do not support links. An attacker can create or modify arbitrary files on the system by bypassing intended security restrictions during t...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS / Pro Realtime 22.04 LTS / Pro Realtime 24.04 LTS : Python vulnerabilities (USN-8744-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS / Pro Realtime 22.04 LTS / Pro Realtime 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8744-1 advisory. It was discovered that Python's...

PT-2026-96612

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was...

CVE-2026-87910: Improper Limitation of a Pathname to a Restricted Directory

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was...

PT-2026-90005

Name of the Vulnerable Software and Affected Versions Python tarfile affected versions not specified Description When extracting a link on a system that does not support links, the software falls back to extracting a member from the archive. During this process, the filter function is executed...

USN-8744-1 python2.7, python3.4, python3.5, python3.6, python3.7, python3.8, python3.9, python3.10, python3.11, python3.12, python3.14 vulnerabilities

It was discovered that Python's http.cookies module incorrectly handled control characters in certain cookie operations. An attacker could possibly use this issue to inject arbitrary content. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu...

USN-8744-1: Python vulnerabilities

It was discovered that Python's http.cookies module incorrectly handled control characters in certain cookie operations. An attacker could possibly use this issue to inject arbitrary content. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu...

TencentOS Server 3: python3.12 (TSSA-2026:0989)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0989 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:...

python: Python tarfile module: Directory traversal allows creation of empty directories outside extraction destination

A flaw was found in the Python tarfile module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX Portable Operating System Interface platforms. This occurs when processing a specially crafted archive containing member names...

python: Python tarfile module: Directory traversal allows creation of empty directories outside extraction destination

A flaw was found in the Python tarfile module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX Portable Operating System Interface platforms. This occurs when processing a specially crafted archive containing member names...

python: Python tarfile module: Directory traversal allows creation of empty directories outside extraction destination

A flaw was found in the Python tarfile module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX Portable Operating System Interface platforms. This occurs when processing a specially crafted archive containing member names...

python: Python tarfile module: Directory traversal allows creation of empty directories outside extraction destination

A flaw was found in the Python tarfile module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX Portable Operating System Interface platforms. This occurs when processing a specially crafted archive containing member names...

python: Python tarfile module: File modification and content disclosure via crafted archives

A flaw was found in Python's tarfile module. This module's data and tar extraction filters are vulnerable to specially crafted archives containing a hard link to a symbolic link. An attacker could exploit this by providing a malicious archive. This could lead to unauthorized modification of file...

python: Python tarfile module: Directory traversal allows creation of empty directories outside extraction destination

A flaw was found in the Python tarfile module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX Portable Operating System Interface platforms. This occurs when processing a specially crafted archive containing member names...

CVE-2026-19672

A flaw was found in the Python tarfile module. This vulnerability allows an attacker to create empty directories outside of the intended extraction destination on POSIX Portable Operating System Interface platforms. This occurs when processing a specially crafted archive containing member names...

python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory

A flaw was found in the tarfile.extractall function within Python. A remote attacker could exploit this vulnerability by providing a specially crafted archive. This archive could bypass security filters by using a hardlink that references a symlink, allowing the symlink to be recreated outside th...

Important: Red Hat Security Advisory: python3 security update

An update for python3 is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring...

Important: Red Hat Security Advisory: python3 security update

An update for python3 is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerabili...

python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory

A flaw was found in the tarfile.extractall function within Python. A remote attacker could exploit this vulnerability by providing a specially crafted archive. This archive could bypass security filters by using a hardlink that references a symlink, allowing the symlink to be recreated outside th...