python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations

A flaw was found in Python. Its incremental HTML parser can be exploited by a remote attacker. By sending specially crafted, uncontrolled data with repeated, incomplete markup declarations, the attacker can cause the system to consume excessive central processing unit CPU resources. This leads to...

python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations

A flaw was found in Python. Its incremental HTML parser can be exploited by a remote attacker. By sending specially crafted, uncontrolled data with repeated, incomplete markup declarations, the attacker can cause the system to consume excessive central processing unit CPU resources. This leads to...

MiracleLinux 9 : python3.14-3.14.5-1.el9_8.1 (AXSA:2026-1523:05)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1523:05 advisory. python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations CVE-2026-15308 Tenable has extracted the preceding...

MiracleLinux 9 : python3.9-3.9.25-7.el9_8.2 (AXSA:2026-1508:06)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1508:06 advisory. python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations CVE-2026-15308 Tenable has extracted the preceding...

MiracleLinux 9 : python3.12-3.12.13-3.el9_8.1 (AXSA:2026-1510:19)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1510:19 advisory. python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations CVE-2026-15308 Tenable has extracted the preceding...

The vulnerability of the Lib/html/parser.py component of the Python programming language allows a hacker to gain access to confidential data and also trigger a service failure.

The vulnerability of the Lib/html/parser.py component of the Python interpreter is related to the insufficient use of the assert function. Exploiting this vulnerability can allow a malicious actor to gain access to confidential data, as well as cause service failures through the creation of...

Astra Linux – Vulnerability in Firefox and Thunderbird

Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8...

Astra Linux – Vulnerability in containerd-app

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to a Denial-of-Service DoS attack if an attacker provides specially crafted HTML content...

Security update for python310

This update for python310 fixes the following issues: Security issues fixed: CVE-2026-0864: improper handling of line-ending characters can lead to configuration file injection when the configparser module is used bsc1269066. CVE-2026-3276: quadratic complexity in unicodedata.normalize can lead t...

Important: Red Hat Security Advisory: python3 security update

An update for python3 is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 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: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations

A flaw was found in Python. Its incremental HTML parser can be exploited by a remote attacker. By sending specially crafted, uncontrolled data with repeated, incomplete markup declarations, the attacker can cause the system to consume excessive central processing unit CPU resources. This leads to...

Important: Red Hat Security Advisory: python3.12 security update

An update for python3.12 is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations

A flaw was found in Python. Its incremental HTML parser can be exploited by a remote attacker. By sending specially crafted, uncontrolled data with repeated, incomplete markup declarations, the attacker can cause the system to consume excessive central processing unit CPU resources. This leads to...

Important: Red Hat Security Advisory: python3.12 security update

An update for python3.12 is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

RHEL 9 : python3.12 (RHSA-2026:50771)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:50771 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic da...

RHEL 8 : python3 (RHSA-2026:50816)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:50816 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic da...

RHEL 9 : python3.12 (RHSA-2026:50770)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:50770 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic da...

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...

python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations

A flaw was found in Python. Its incremental HTML parser can be exploited by a remote attacker. By sending specially crafted, uncontrolled data with repeated, incomplete markup declarations, the attacker can cause the system to consume excessive central processing unit CPU resources. This leads to...

python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations

A flaw was found in Python. Its incremental HTML parser can be exploited by a remote attacker. By sending specially crafted, uncontrolled data with repeated, incomplete markup declarations, the attacker can cause the system to consume excessive central processing unit CPU resources. This leads to...