CVE-2026-44898

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, rendertocul builds a table-of-contents tree from a list of level, id, text tuples. Both the id value used as href="" and the text value used as the visible link label are inserted into tags via a plain Python format...

EUVD-2026-31995

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, rendertocul builds a table-of-contents tree from a list of level, id, text tuples. Both the id value used as href="" and the text value used as the visible link label are inserted into tags via a plain Python format...

CVE-2026-44708

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the mistune math plugin renders inline math $...$ and block math $$...$$ by concatenating the raw user-supplied content directly into the HTML output without any HTML escaping. This occurs even when the parser is...

CVE-2026-44896 Mistune: XSS via unescaped figclass/figwidth in Figure directive

Mistune is a Python Markdown parser with renderers and plugins. In 3.2.0 and earlier, in src/mistune/directives/image.py, the renderfigure function concatenates figclass and figwidth options directly into HTML attributes without escaping. This allows attribute injection and XSS even when...

CVE-2026-44898: Improper Neutralization of Input During Web Page Generation

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, rendertocul builds a table-of-contents tree from a list of level, id, text tuples. Both the id value used as href=" " and the text value used as the visible link label are inserted into tags via a plain Python format...

CVE-2026-44708: Improper Neutralization of Input During Web Page Generation

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the mistune math plugin renders inline math $...$ and block math $$...$$ by concatenating the raw user-supplied content directly into the HTML output without any HTML escaping. This occurs even when the parser is...

Open WebUI has Stored XSS in Banner Component via Improper Sanitization Order

Summary A Stored Cross-Site Scripting XSS vulnerability exists in the Banner component due to an improper sanitization order specifically, DOMPurify is executed before the marked library. This vulnerability allows a compromised or malicious administrator to plant a malicious payload in the global...

GHSA-HJPH-F4MC-WX4C Duplicate Advisory: Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-8mp2-v27r-99xp. This link is maintained to preserve external references. Original Description Summary Denial-of-Service DoS vulnerability in the Mistune Markdown parser. The issue occurs when processing speciall...

CVE-2026-41680

A flaw was found in marked, a markdown parser and compiler. An unauthenticated attacker can exploit this Denial of Service DoS vulnerability by providing a specific 3-byte input sequence a tab, a vertical tab, and a newline. This input triggers an infinite recursion loop during parsing, leading t...

Linux Distros Unpatched Vulnerability : CVE-2026-41680

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service DoS vulnerability exists in marked. By providing a specific 3-byte...

CVE-2026-41680

Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service DoS vulnerability exists in marked. By providing a specific 3-byte input sequence a tab, a vertical tab, and a newline \x09\x0b\n—an unauthenticated attacker can trigger an infinite recursion loop during...

CVE-2026-41680

Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service DoS vulnerability exists in marked. By providing a specific 3-byte input sequence a tab, a vertical tab, and a newline \x09\x0b\n—an unauthenticated attacker can trigger an infinite recursion loop during...

CVE-2026-41680 Marked: OOM Denial of Service via Infinite Recursion in marked Tokenizer

Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service DoS vulnerability exists in marked. By providing a specific 3-byte input sequence a tab, a vertical tab, and a newline \x09\x0b\n—an unauthenticated attacker can trigger an infinite recursion loop during...

CVE-2026-40890

The package github.com/gomarkdown/markdown is a Go library for parsing Markdown text and rendering as HTML. Processing a malformed input containing a character anywhere in the remaining text with a SmartypantsRenderer will lead to Out of Bounds read or a panic. This vulnerability is fixed with...

goldmark 安全漏洞

Goldmark is a Markdown parser written in Go language by Yusuke Inuzuka. Versions of Goldmark prior to 1.7.17 contained security vulnerabilities, which were caused by improper URL validation and normalization order. These vulnerabilities could lead to cross-site scripting attacks...

CVE-2026-35201

Discount is an implementation of John Gruber's Markdown markup language in C. From 1.3.1.1 to before 2.2.7.4, a signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INTMAX are truncated to a signed int before entering the native parser,...

AZL-82902 CVE-2026-35201 affecting package rubygem-rdiscount for versions less than 2.2.7.4-1

Discount is an implementation of John Gruber's Markdown markup language in C. From 1.3.1.1 to before 2.2.7.4, a signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INTMAX are truncated to a signed int before entering the native parser,...

UBUNTU-CVE-2026-35201

Discount is an implementation of John Gruber's Markdown markup language in C. From 1.3.1.1 to before 2.2.7.4, a signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INTMAX are truncated to a signed int before entering the native parser,...

CVE-2026-35201

Discount is an implementation of John Gruber's Markdown markup language in C. From 1.3.1.1 to before 2.2.7.4, a signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INTMAX are truncated to a signed int before entering the native parser,...

CVE-2026-35201 Discount has an Out-of-bounds Read in rdiscount

Discount is an implementation of John Gruber's Markdown markup language in C. From 1.3.1.1 to before 2.2.7.4, a signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INTMAX are truncated to a signed int before entering the native parser,...