PT-2026-43087

A flaw has been found in dazeb markdown-downloader up to 3d4394b34b6c99d81af817623af55e3384df5a6a. Affected is the function download markdown/list downloaded files/create subdirectory of the file src/index.ts. Executing a manipulation can lead to path traversal. The attack can be launched remotel...

CVE-2026-48988

creationtimestamp| type| source ---|---|--- 2026-05-23 23:47:27+00:00| published-proof-of-concept| https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6v5v-wf23-fmfq 2026-06-17 22:39:57+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mojeymb5ll2z...

PT-2026-42752

Name of the Vulnerable Software and Affected Versions Sync-in versions prior to 2.3 Description An issue exists in the URL download feature where the private IP blocklist regex fails to match IPv4-mapped IPv6 addresses, such as ::ffff:127.0.0.1. On dual-stack systems, Node.js may report a socket'...

Unity Linux 20.1060e / 20.1070e Security Update: grafana (UTSA-2026-016632)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016632 advisory. Grafana is an open-source platform for monitoring and observability. Grafana prior to versions 8.3.2 and 7.5.12 contains a directory traversal vulnerability for full...

GHSA-JV8M-2544-3PG3 Twig: HTML-output filters in twig/* extras incorrectly declared `is_safe => ['all']`

Description Several filters in the twig/ extras packages are registered with issafe = 'all', which tells Twig's autoescaper to treat their output as safe in every context html, js, css, url, .... The output of these filters is plain text or HTML markup, neither of which is safe in every escaping...

Improper Encoding or Escaping of Output

Overview Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output in the htmltomarkdown, markdowntohtml, and inlinecss filters due to incorrect declaration of output safety. An attacker can inject unescaped HTML or script content by supplying specially crafted...

Twig: HTML-output filters in twig/* extras incorrectly declared `is_safe => ['all']`

Description Several filters in the twig/ extras packages are registered with issafe = 'all', which tells Twig's autoescaper to treat their output as safe in every context html, js, css, url, .... The output of these filters is plain text or HTML markup, neither of which is safe in every escaping...

NPM: md-fileserver: Stored/Reflected XSS when viewing Markdown (raw HTML allowed)

NPM: md-fileserver: Stored/Reflected XSS when viewing Markdown raw HTML allowed vulnerability discovered by ? in WordPress Npm md-fileserver versions 1.10.3...

GHSA-32Q2-HHR5-6QVV md-fileserver: Stored/Reflected XSS when viewing Markdown (raw HTML allowed)

Summary A cross-site scripting XSS vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution ...

md-fileserver: Stored/Reflected XSS when viewing Markdown (raw HTML allowed)

Summary A cross-site scripting XSS vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution ...

PT-2026-42631

Description Several filters in the twig/ extras packages are registered with is safe = 'all', which tells Twig's autoescaper to treat their output as safe in every context html, js, css, url, .... The output of these filters is plain text or HTML markup, neither of which is safe in every escaping...

PT-2026-42586

Summary A cross-site scripting XSS vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution ...

PT-2026-42666

Name of the Vulnerable Software and Affected Versions md-fileserver versions prior to 1.10.3 Description A cross-site scripting XSS issue exists in the Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML, such as tags or event handlers e.g., , is processed...

RHSA-2026:19366 Red Hat Security Advisory: python-markdown security update

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RHSA-2026:19155 Red Hat Security Advisory: python-markdown security update

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Astra Linux – Vulnerability in md4c

The mdanalyzeline function in md4c.c, within md4c 0.4.7, allows attackers to trigger the use of uninitialized memory, thereby causing a denial of service through a malformed Markdown document...

Astra Linux – Vulnerability in Jinja2

This issue affects the Jinja2 package versions starting from 0.0.0 and earlier than 2.11.3. The ReDoS vulnerability is primarily caused by the punctuationre regex operator and its use of multiple wildcards. The last wildcard is the most exploitable, as it is used to search for trailing punctuatio...

Astra Linux – Vulnerability in node-marked

Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression block.def might cause catastrophic backtracking against certain strings, leading to a regular expression denial of service ReDoS attack. Any user who runs untrusted markdown using a vulnerable version of...

Astra Linux – Vulnerability in node-marked

Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression inline.reflinkSearch might cause catastrophic backtracking for certain strings, leading to a denial of service DoS attack. Any user who runs untrusted markdown using a vulnerable version of Marked, without...

python-markdown: denial of service via malformed HTML-like sequences

A flaw was found in Python-Markdown. Parsing crafted markdown content containing malformed HTML-like sequences causes html.parser.HTMLParser to raise an unhandled AssertionError. This unhandled exception allows an attacker to cause an application crash and potentially disclose sensitive informati...