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...

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...

RHEL 10 : python3.12 (RHSA-2026:47939)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:47939 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic...

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 10.0 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...

TencentOS Server 3: python3 (TSSA-2026:0766)

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-2026:0766 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:...

CVE-2026-66394

Affected software: SiYuan prior to v3.7.3. Vulnerability: stored and reflected XSS via SVG sanitization bypassing the HTML parser-based cleaner, allowing authenticated attackers to run scripts. Trigger/context: scripts can be executed in the application origin when served as image/svg+xml by hidi...

PT-2026-64995

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.3 Description Stored and reflected cross-site scripting issues exist in SVG sanitization. Authenticated attackers can bypass the HTML parser-based cleaner by hiding script tags within desc, style, or noscript...

Cross-site Scripting (XSS)

Overview trix is a Rich Text Editor. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the HTMLParser process. An attacker can inject malicious scripts by pasting crafted HTML containing a span element with an empty data-trix-attachment attribute, which bypasses...

OESA-2026-3182 python3 security update

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C...

OESA-2026-3180 python3 security update

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C...

Alibaba Cloud Linux 3 : 0226: python3 (ALINUX3-SA-2026:0226)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2026:0226 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-15308: The incremental HTML parser...

USN-8587-1: HTML-Parser vulnerability

It was discovered that HTML-Parser incorrectly handled entity references when the input string was identical to an entity value in the lookup table. An attacker could possibly use this issue to obtain sensitive information...

python3.14 security update

An update is available for python3.14. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Python is an interpreted, interactive, object-oriented programming...

python3.14 security update

An update is available for python3.14. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Python is an interpreted, interactive, object-oriented programming languag...

RLSA-2026:41949 Important: python3.14 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...

RockyLinux 9 : python3.14 (RLSA-2026:41949)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:41949 advisory. python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations CVE-2026-15308 Tenable has extracted the preceding description...