Description (CNA)
league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart() block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters, forcing repeated full-buffer strpos scans that exhaust PHP worker CPU.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| thephpleague / commonmark | affected 2.0.0 before 2.10.2; unaffected 2.10.2 |
CWE
CWE-400
References
- https://github.com/thephpleague/commonmark/security/advisories/GHSA-3q6v-r5mr-hxv8
- https://www.vulncheck.com/advisories/league-commonmark-2.0.0-before-2.10.2-quadratic-dos-via-tablestartparser
ADP enrichment
No English description supplied.