CVE-2022-21680
- Severity
- High
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA KEV
- Not in the cached KEV catalog
- EPSS
- No cached EPSS score
Affected and fixed versions
OSV did not list a semver range for this package on the entry we stored.
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Cubic catastrophic backtracking (ReDoS) in marked
Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression `block.def` may cause catastrophic backtracking against some strings and lead to a regular expression denial of service (ReDoS). Anyone who runs untrusted markdown through a vulnerable version of marked and does not use a worker with a time limit may be affected. This issue is patched in version 4.0.10. As a workaround, avoid running untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources.
Aliases: GHSA-rrrm-qjm4-v8hf
Advisory on OSV.dev · published 2022-01-14 · modified 2026-10-28
- https://github.com/markedjs/marked/releases/tag/v4.0.10
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21680.json
- https://github.com/markedjs/marked/security/advisories/GHSA-rrrm-qjm4-v8hf
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AIXDMC3CSHYW3YWVSQOXAWLUYQHAO5UX/
- https://nvd.nist.gov/vuln/detail/CVE-2022-21680
- https://github.com/markedjs/marked/commit/c4a3ccd344b6929afa8a1d50ac54a721e57012c0