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: Denial of Service via out-of-bounds write in BZ2 decompression

A flaw was found in Python's bz2.BZ2Decompressor component. An attacker could provide specially crafted input that, when processed by an application reusing a decompressor object after an error, could lead to out-of-bounds writes in memory. This memory corruption could cause the application to...

MGASA-2026-0409 Updated python-h2 packages fix a security vulnerability

Duplicate Host header facilitate request smuggling. CVE-2026-71554...

Updated python-h2 packages fix a security vulnerability

Duplicate Host header facilitate request smuggling. CVE-2026-71554...

CVE-2026-88064

Backstage is an open framework for building developer portals. Prior to 1.14.6 and from 1.15.0 until 1.15.4, the @backstage/plugin-techdocs-node package insufficiently validates mkdocs.yml supplied by an authenticated user who can register or modify a TechDocs source. Unsafe Python YAML tags,...

CVE-2026-76825

RestrictedPython is a tool that helps define a subset of the Python language for accepting program input in a trusted environment. Prior to 8.4, RestrictedPython could allow a sandbox escape when a custom import policy or globals exposed the standard library string module, the string.Formatter...

DEBIAN-CVE-2026-76825

RestrictedPython is a tool that helps define a subset of the Python language for accepting program input in a trusted environment. Prior to 8.4, RestrictedPython could allow a sandbox escape when a custom import policy or globals exposed the standard library string module, the string.Formatter...

CVE-2026-76825

RestrictedPython is a tool that helps define a subset of the Python language for accepting program input in a trusted environment. Prior to 8.4, RestrictedPython could allow a sandbox escape when a custom import policy or globals exposed the standard library string module, the string.Formatter...

UBUNTU-CVE-2026-76825

RestrictedPython is a tool that helps define a subset of the Python language for accepting program input in a trusted environment. Prior to 8.4, RestrictedPython could allow a sandbox escape when a custom import policy or globals exposed the standard library string module, the string.Formatter...

python: Python: Privilege escalation due to insecure VPATH handling in Windows legacy installers

A flaw was found in Python. On Windows systems utilizing legacy installers, a low-privilege user can exploit insecure handling of the VPATH variable. This allows the user to create a specific landmark file outside the Python installation directory. Consequently, an alternative Lib folder can be...

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: FTP connection redirection via ftpcp() function bypass

A flaw was found in the ftplib.py module of Python. This vulnerability allows a remote attacker to bypass a previous security fix by manipulating the ftpcp function. By supplying a malicious IP address and port, an attacker can redirect FTP connections to an arbitrary host. This could lead to the...

python: Python/Expat: Denial of Service via crafted XML document

A flaw was found in the python and expat components. Insufficient entropy in the hash-flooding protection mechanism of xml.parsers.expat and xml.etree.ElementTree allows a remote attacker to craft a malicious XML document. This crafted document can trigger a hash flooding attack, leading to a...

python: Python unicodedata: Denial of Service due to excessive CPU consumption

A flaw was found in the unicodedata.normalize function in Python. This vulnerability allows a remote attacker to cause excessive CPU consumption by providing specially crafted Unicode input. Successful exploitation can lead to a Denial of Service DoS on the affected system...

python: Python: Denial of Service via out-of-bounds write in BZ2 decompression

A flaw was found in Python's bz2.BZ2Decompressor component. An attacker could provide specially crafted input that, when processed by an application reusing a decompressor object after an error, could lead to out-of-bounds writes in memory. This memory corruption could cause the application to...

CVE-2026-77401 Zope AccessControl: Information disclosure through Python string `format` and `format_map` functions

Zope AccessControl provides a general security framework for use in Zope. Prior to 7.4, applications that allow untrusted users to create and execute AccessControl-controlled Python code do not safely guard str.format and str.formatmap when those methods are reached through a str subclass. In bot...

python: Python: Privilege escalation due to insecure VPATH handling in Windows legacy installers

A flaw was found in Python. On Windows systems utilizing legacy installers, a low-privilege user can exploit insecure handling of the VPATH variable. This allows the user to create a specific landmark file outside the Python installation directory. Consequently, an alternative Lib folder can be...

python: Python: FTP connection redirection via ftpcp() function bypass

A flaw was found in the ftplib.py module of Python. This vulnerability allows a remote attacker to bypass a previous security fix by manipulating the ftpcp function. By supplying a malicious IP address and port, an attacker can redirect FTP connections to an arbitrary host. This could lead to the...

python: Python unicodedata: Denial of Service due to excessive CPU consumption

A flaw was found in the unicodedata.normalize function in Python. This vulnerability allows a remote attacker to cause excessive CPU consumption by providing specially crafted Unicode input. Successful exploitation can lead to a Denial of Service DoS on the affected system...

python: Python/Expat: Denial of Service via crafted XML document

A flaw was found in the python and expat components. Insufficient entropy in the hash-flooding protection mechanism of xml.parsers.expat and xml.etree.ElementTree allows a remote attacker to craft a malicious XML document. This crafted document can trigger a hash flooding attack, leading to a...