8.7
Élevée
CVE-2026-121437 Mistune from 3.3.0 before 3.3.4 contains a denial of service vulnerability that allows remote attackers to exhaust CPU…
Description
Mistune from 3.3.0 before 3.3.4 contains a denial of service vulnerability that allows remote attackers to exhaust CPU through quadratic-time emphasis delimiter processing. Attackers can submit small markdown documents with repeated patterns like "*a_b" to trigger an O(n²) index-fixup loop, stalling workers for seconds.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| mistune 3.3 | 3.3.0 → < 3.3.4 | 3.3.4 |
Références
- GitHub Security Advisory (GHSA-qp42-r9j6-83g9) github.com
- Patch Commit github.com
- VulnCheck Advisory: Mistune 3.3.0 before 3.3.4 Quadratic-Time DoS via _process_emphasis_delimiters www.vulncheck.com
Chronologie
- Publiée
- Dernière modification
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