Denial of Service in markdown-it-toc-and-anchor
All versions of markdown-it-toc-and-anchor are vulnerable to Denial of Service. Parsing markdown containing **text**+\n@[toc] causes the application to enter and infinite loop.
Recommendation
No fix is currently available. Consider using an alternative module until a fix is made available.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | markdown-it-toc-and-anchor | < 4.2.0 | 4.2.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-400- Platform
- npm
- Package
markdown-it-toc-and-anchor- Disclosed
- 01.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-x6m6-5hrf-fh6r - CC BY 4.0
Vulnerability history: markdown-it-toc-and-anchor
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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