4733 matches found
CVE-2026-8661
Server-Side Request Forgery in the markdowntopdf action of Rapid7 InsightConnect Markdown Plugin on Linux in versions prior to 4.0.2 allows remote attackers to make arbitrary outbound HTTP requests via unsanitized resource-loading HTML elements img/src, CSS url, @import embedded in Markdown input...
PT-2026-53018
Name of the Vulnerable Software and Affected Versions linkify-it versions prior to 5.0.1 Description LinkifyIt.prototype.match, the primary public API of the library, exhibits ON² algorithmic complexity when processing inputs containing numerous fuzzy links or emails. This occurs because the...
CVE-2026-49851
A flaw was found in Mistune, a Python Markdown parser. A remote attacker can exploit this vulnerability by providing a specially crafted Markdown input containing many consecutive bracket characters. This can lead to excessive CPU usage, causing a denial-of-service DoS condition on the affected...
CVE-2026-54025
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, there is a vulnerability in LibreChat's markdown artifact preview pipeline. The marked library v15.0.12 does not HTML-escape double-quote characters in image alt text when a custom renderer falls throu...
CVE-2026-54025
LibreChat suffers a stored XSS in its Markdown artifact preview prior to version 0.8.4-rc1. The vulnerability arises because lib re uses marked v15.0.12 to render image alt text without HTML-escaping double quotes when the custom image renderer defers to the default renderer. LibreChat’s generate...
EUVD-2026-39463
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, there is a vulnerability in LibreChat's markdown artifact preview pipeline. The marked library v15.0.12 does not HTML-escape double-quote characters in image alt text when a custom renderer falls throu...
CVE-2026-54025 LibreChat: Stored XSS via unescaped image alt text in markdown artifact preview
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, there is a vulnerability in LibreChat's markdown artifact preview pipeline. The marked library v15.0.12 does not HTML-escape double-quote characters in image alt text when a custom renderer falls throu...
CVE-2026-54025
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, there is a vulnerability in LibreChat's markdown artifact preview pipeline. The marked library v15.0.12 does not HTML-escape double-quote characters in image alt text when a custom renderer falls throu...
CVE-2026-54025 LibreChat: Stored XSS via unescaped image alt text in markdown artifact preview
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, there is a vulnerability in LibreChat's markdown artifact preview pipeline. The marked library v15.0.12 does not HTML-escape double-quote characters in image alt text when a custom renderer falls throu...
PT-2026-52491
Name of the Vulnerable Software and Affected Versions LibreChat versions prior to 0.8.4-rc1 Description A flaw exists in the markdown artifact preview pipeline. The generateMarkdownHtml function located in client/src/utils/markdown.ts utilizes a custom image renderer that triggers a fallback to t...
CVE-2026-54070
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, renderPackageREADME in kernel/bazaar/readme.go renders a Bazaar package README from Markdown to HTML with the lute engine and SetSanitizetrue. The lute sanitizer is an event-handler blocklist: allowAttr rejects only...
CVE-2026-54070
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, renderPackageREADME in kernel/bazaar/readme.go renders a Bazaar package README from Markdown to HTML with the lute engine and SetSanitizetrue. The lute sanitizer is an event-handler blocklist: allowAttr rejects only...
CVE-2026-47733 Rocket.Chat: Missing URL protocol sanitization in ImageElement allows javascript: URLs in markdown images
Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, the ImageElement component in packages/gazzodown renders user-controlled src values directly into and attributes without protocol sanitization. Unlike the analogous LinkSpan component — which uses...
CVE-2026-47733
Rocket.Chat CVE-2026-47733 affects the ImageElement in packages/gazzodown prior to 8.5.0, where user-controlled src values are inserted into and without protocol sanitization. An authenticated user can post markdown images with a javascript: URL that, on older browsers, could execute arbitrary ...
CVE-2026-47733
Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, the ImageElement component in packages/gazzodown renders user-controlled src values directly into and attributes without protocol sanitization. Unlike the analogous LinkSpan component — which uses...
CVE-2026-47733 Rocket.Chat: Missing URL protocol sanitization in ImageElement allows javascript: URLs in markdown images
Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, the ImageElement component in packages/gazzodown renders user-controlled src values directly into and attributes without protocol sanitization. Unlike the analogous LinkSpan component — which uses...
CVE-2026-49851
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Mistune is vulnerable to a CPU exhaustion DoS due to superlinear approximately On² behavior in parselinktext. When parsing Markdown containing many consecutive characters, parselinktext repeatedly scans the input usin...
CVE-2026-48704
Warp is an agentic development environment. From 0.2023.10.24.08.03.stable00 until 0.2026.05.06.15.42.stable01, Warp may open executable local files through the operating system default file handler. A malicious Markdown document or project can contain a local-file link that appears as normal...
UBUNTU-CVE-2026-49851
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Mistune is vulnerable to a CPU exhaustion DoS due to superlinear approximately On² behavior in parselinktext. When parsing Markdown containing many consecutive characters, parselinktext repeatedly scans the input usin...
CVE-2026-48704
Warp is an agentic development environment. From 0.2023.10.24.08.03.stable00 until 0.2026.05.06.15.42.stable01, Warp may open executable local files through the operating system default file handler. A malicious Markdown document or project can contain a local-file link that appears as normal...