Amazon Linux 2 : python3, --advisory ALAS2-2026-3826 (ALAS-2026-3826)

The version of python3 installed on the remote host is prior to 3.7.16-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3826 advisory. When using the tarfile module with a file opened in streaming mode mode=r| the tarfile module did not properly handle EOF...

SUSE SLED15: libpython3_11-1_0 / python311 / python311-base / python311-curses / etc (SUSE-SU-2026:3104-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3104-1 advisory. This update for python311 fixes the following issues - CVE-2026-1502: CR/LF bytes not rejected by HTTP client...

python: Python: Cross-Site Scripting (XSS) vulnerability in http.cookies module

A flaw was found in Python's http.cookies module. The Morsel.jsoutput function, responsible for generating JavaScript output for cookies, does not properly neutralize the HTML sequence. This oversight could allow a remote attacker to inject malicious script into a web page, potentially leading to...

python: Python: Cross-Site Scripting (XSS) vulnerability in http.cookies module

A flaw was found in Python's http.cookies module. The Morsel.jsoutput function, responsible for generating JavaScript output for cookies, does not properly neutralize the HTML sequence. This oversight could allow a remote attacker to inject malicious script into a web page, potentially leading to...

python: Python: Cross-Site Scripting (XSS) vulnerability in http.cookies module

A flaw was found in Python's http.cookies module. The Morsel.jsoutput function, responsible for generating JavaScript output for cookies, does not properly neutralize the HTML sequence. This oversight could allow a remote attacker to inject malicious script into a web page, potentially leading to...

BIT-PYTHON-2026-6019 BaseCookie.js_output() does not neutralize embedded characters

http.cookies.Morsel.jsoutput returns an inline snippet and only escapes " for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value...

Astra Linux – Vulnerability in Python 3.11

When using http.cookies.Morsel, user-controlled cookie values and parameters may allow the injection of HTTP headers into messages. The patch rejects all control characters within cookie names, values, and parameters...

python: Python: Cross-Site Scripting (XSS) vulnerability in http.cookies module

A flaw was found in Python's http.cookies module. The Morsel.jsoutput function, responsible for generating JavaScript output for cookies, does not properly neutralize the HTML sequence. This oversight could allow a remote attacker to inject malicious script into a web page, potentially leading to...

Medium: python3.11

Issue Overview: The import hook in CPython that handles legacy .pyc files SourcelessFileLoader is incorrectly handled in FileLoader a base class and so does not use io.opencode to read the .pyc files. sys.audit handlers for this audit event therefore do not fire. CVE-2026-2297...

Amazon Linux 2 : python, --advisory ALAS2-2026-3366 (ALAS-2026-3366)

The version of python installed on the remote host is prior to 2.7.18-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3366 advisory. http.cookies.Morsel.jsoutput returns an inline snippet and only escapes for JavaScript string context. It does not neutralize the...

Medium: python3.14

Issue Overview: The "tarfile" module would still apply normalization of AREGTYPE \x00 blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPELONGNAME or GNUTYPELONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other...

Amazon Linux 2023 : python3.12, python3.12-devel, python3.12-idle (ALAS2023-2026-1821)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1821 advisory. The import hook in CPython that handles legacy .pyc files SourcelessFileLoader is incorrectly handled in FileLoader a base class and so does not use io.opencode to read the .pyc files. sys.aud...

Medium: python3.13

Issue Overview: http.cookies.Morsel.jsoutput returns an inline snippet and only escapes " for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie valu...

RockyLinux 9 : python3.12 (RLSA-2026:19177)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19177 advisory. expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing CVE-2025-59375...

cpython: Incomplete control character validation in http.cookies

A control character validation flaw has been discovered in the Python http.cookie module. The Morsel.update, |= operator, and unpickling paths were not patched to resolve CVE-2026-0672, allowing control characters to bypass input validation. Additionally, BaseCookie.jsoutput lacked the output...

cpython: Incomplete control character validation in http.cookies

A control character validation flaw has been discovered in the Python http.cookie module. The Morsel.update, |= operator, and unpickling paths were not patched to resolve CVE-2026-0672, allowing control characters to bypass input validation. Additionally, BaseCookie.jsoutput lacked the output...

cpython: Header injection in http.cookies.Morsel in Python

An injection flaw has been discovered in Python. When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters...

cpython: Incomplete control character validation in http.cookies

A control character validation flaw has been discovered in the Python http.cookie module. The Morsel.update, |= operator, and unpickling paths were not patched to resolve CVE-2026-0672, allowing control characters to bypass input validation. Additionally, BaseCookie.jsoutput lacked the output...

cpython: Header injection in http.cookies.Morsel in Python

An injection flaw has been discovered in Python. When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters...

cpython: Incomplete control character validation in http.cookies

A control character validation flaw has been discovered in the Python http.cookie module. The Morsel.update, |= operator, and unpickling paths were not patched to resolve CVE-2026-0672, allowing control characters to bypass input validation. Additionally, BaseCookie.jsoutput lacked the output...