DEBIAN-CVE-2026-111766
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-111766
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111766.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-111766
- Upstream
- Published
- 2026-10-20T14:47:31Z
- Modified
- 2026-10-20T15:00:06Z
- Summary
- [none]
- Details
-
markdown-it is a Markdown parser. Prior to 14.3.3 and 15.0.3, when the html option or commonmark preset is enabled and the constructs occur inside a paragraph, attacker-controlled Markdown containing repeated unterminated inline HTML comments, processing instructions, declarations, or CDATA sections reaches src/rules_inline/html_inline.ts. Its HTML_TAG_RE match searches the remaining suffix for the appropriate terminator; when no terminator is present, parsing advances to the next opener and repeats the match over overlapping input, causing quadratic processing and denial of service through event-loop blocking or an unresponsive browser main thread. HTML blocks and the default HTML-disabled configuration are not affected by these payloads. This issue is fixed in versions 14.3.3 and 15.0.3.
- References
Affected packages
Debian:12 / node-markdown-it
Package
- Name
- node-markdown-it
- Purl
- pkg:deb/debian/node-markdown-it?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / node-markdown-it
Package
- Name
- node-markdown-it
- Purl
- pkg:deb/debian/node-markdown-it?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:14 / node-markdown-it
Package
- Name
- node-markdown-it
- Purl
- pkg:deb/debian/node-markdown-it?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected