RHEL 8 : python3 (RHSA-2026:50064)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:50064 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic da...

Important: python3

Issue Overview: CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host. CVE-2026-1502 The incremental HTML parser html.parser.HTMLParser allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data. CVE-2026-15308 When...

Important: python3.9

Issue Overview: The incremental HTML parser html.parser.HTMLParser allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data. CVE-2026-15308 In the Tarfile.extract function, the filter parameter is not passed properly when extracting...

Important: python3.14

Issue Overview: When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters \r the resulting file could be injected with unexpected keys and values if the attacker controls the written value. CVE-2026-0864 The incremental HTM...

Important: python3.11

Issue Overview: CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host. CVE-2026-1502 The incremental HTML parser html.parser.HTMLParser allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data. CVE-2026-15308 In the...

Important: python3.13

Issue Overview: The incremental HTML parser html.parser.HTMLParser allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data. CVE-2026-15308 In the Tarfile.extract function, the filter parameter is not passed properly when extracting...

Important: python

Issue Overview: CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host. CVE-2026-1502 The incremental HTML parser html.parser.HTMLParser allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data. CVE-2026-15308 When...

Amazon Linux 2 : python3, --advisory ALAS2-2026-3852 (ALAS-2026-3852)

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 ALAS2-2026-3852 advisory. CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host. CVE-2026-1502 The incremental HTML parser...

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:...

USN-8614-1: Python vulnerabilities

It was discovered that Python incorrectly handled expanding environment variables in os.path.expandvars when the input was user-controlled. An attacker could possibly use this issue to cause Python to consume resources, leading to a denial of service. CVE-2025-6075 It was discovered that Python...

USN-8614-1 python2.7, python3.5 vulnerabilities

It was discovered that Python incorrectly handled expanding environment variables in os.path.expandvars when the input was user-controlled. An attacker could possibly use this issue to cause Python to consume resources, leading to a denial of service. CVE-2025-6075 It was discovered that Python...

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...

Trix: Stored XSS via HTMLParser attribute injection on paste

Impact The Trix editor, in versions prior to 2.1.18, is vulnerable to XSS when crafted HTML is pasted into the editor. The HTMLParser processed a mock attachment, a carrying an empty data-trix-attachment="". The empty attachment object caused the element to bypass attachment handling, so its...

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...