BIT-LIBPYTHON-2023-6507 Groups not dropped before running subprocess when using empty 'extra_groups' parameter

An issue was found in CPython 3.12.0 subprocess module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases. When using the extragroups= parameter with an empty list as a value ie extragroups= the logic regressed to not call setgroups0, NULL before...

BIT-LIBPYTHON-2022-26488

In Python before 3.10.3 on Windows, local users can gain privileges because the search path is inadequately secured. The installer may allow a local attacker to add user-writable directories to the system search path. To exploit, an administrator must have installed Python for all users and enabl...

BIT-LIBPYTHON-2021-23336 Web Cache Poisoning

The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parseqsl and urllib.parse.parseqs by using a vector called parameter cloaking. When the attacker can...

CVE-2025-8194

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives...

CVE-2025-8194

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives...

CVE-2025-8194

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives...

CVE-2025-8194 Tarfile infinite loop during parsing with negative member offset

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives...

CVE-2025-8194

CVE-2025-8194 affects the CPython tarfile module (TarFile extraction/entry enumeration APIs). Malicious tar archives with negative offsets could trigger an infinite loop and deadlock during parsing. A patch is available to mitigate after importing tarfile (gist: sethmlarson/1716ac5b82b73dbcbf23ad...

PSF-2025-11

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives...

CVE-2025-8194

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives...

CVE-2025-8194: Loop with Unreachable Exit Condition

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives...

PT-2025-31145

Name of the Vulnerable Software and Affected Versions CPython versions affected versions not specified Description A defect exists in the CPython “tarfile” module, impacting the “TarFile” extraction and entry enumeration APIs. The tar implementation processes tar archives with negative offsets...

CPython security vulnerabilities

CPython is a Python interpreter implemented in C from the Python Foundation. A security vulnerability exists in CPython that stems from a malicious tar file that could lead to an infinite loop and deadlock...

NewStart CGSL MAIN 7.02 : python3.11 Multiple Vulnerabilities (NS-SA-2025-0109)

The remote NewStart CGSL host, running version MAIN 7.02, has python3.11 packages installed that are affected by multiple vulnerabilities: - A vulnerability has been found in the CPython venv module and CLI where path names provided when creating a virtual environment were not quoted properly,...

PT-2025-48144

Уязвимость модуля ctypes интерпретатора языка программирования Python CPython связана с разыменованием указателя NULL. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании...

cpython: python: Bypass extraction filter to modify file metadata outside extraction directory

A flaw was found in CPython's tarfile module. This vulnerability allows modification of file metadata, such as timestamps or permissions, outside the intended extraction directory via maliciously crafted tar archives using the filter="data" or filter="tar" extraction filters...

cpython: python: Bypass extraction filter to modify file metadata outside extraction directory

A flaw was found in CPython's tarfile module. This vulnerability allows modification of file metadata, such as timestamps or permissions, outside the intended extraction directory via maliciously crafted tar archives using the filter="data" or filter="tar" extraction filters...

cpython: Tarfile extracts filtered members when errorlevel=0

A flaw was found in CPython's tarfile module. This vulnerability allows unauthorized file extraction via crafted tar archives when TarFile.errorlevel=0, bypassing expected filtering mechanisms...

cpython: Tarfile extracts filtered members when errorlevel=0

A flaw was found in CPython's tarfile module. This vulnerability allows unauthorized file extraction via crafted tar archives when TarFile.errorlevel=0, bypassing expected filtering mechanisms...

cpython: python: Bypass extraction filter to modify file metadata outside extraction directory

A flaw was found in CPython's tarfile module. This vulnerability allows modification of file metadata, such as timestamps or permissions, outside the intended extraction directory via maliciously crafted tar archives using the filter="data" or filter="tar" extraction filters...