CVE-2021-21306
Description
Marked is an open-source markdown parser and compiler (npm package "marked"). In marked from version 1.1.1 and before version 2.0.0, there is a Regular expression Denial of Service vulnerability. This vulnerability can affect anyone who runs user generated code through marked. This vulnerability is fixed in version 2.0.0.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.8.0-1 | |
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 0 |
| debian | sid | fixed | 0 |
| debian | trixie | fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| npm | marked | >=1.1.1,<2.0.0 | 2.0.0 |
References
- https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96
- https://nvd.nist.gov/vuln/detail/CVE-2021-21306
- https://github.com/markedjs/marked/issues/1927
- https://github.com/markedjs/marked/pull/1864
- https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccd
- https://www.npmjs.com/package/marked
- https://security-tracker.debian.org/tracker/CVE-2021-21306
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.