6.9
Moyenne
CVE-2026-121438 Mistune before 3.3.3 contains a denial of service vulnerability in InlineParser.parse_link that allows attackers to…
Description
Mistune before 3.3.3 contains a denial of service vulnerability in InlineParser.parse_link that allows attackers to cause quadratic CPU growth by supplying balanced nested brackets. Attackers can submit crafted Markdown with thousands of nested bracket pairs not forming a valid link, triggering repeated _contains_nested_link scans that exhaust CPU in parsing applications.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| mistune 3.3 | premières → < 3.3.3 | 3.3.3 |
Références
- GitHub Security Advisory (GHSA-47p6-w2rc-5qf7) github.com
- Patch Commit github.com
- VulnCheck Advisory: Mistune before 3.3.3 Denial of Service via Balanced Bracket Link Parsing www.vulncheck.com
Chronologie
- Publiée
- Dernière modification
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Les 28 CVE de mistune →
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9.2
Critique