CVE-2026-115508
CVE-2026-115508 · Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Crawl4AI 0.7.0 before 0.9.5 contains an inefficient regular expression complexity vulnerability in the Docker API server that allows authenticated API clients to supply unbounded regular expressions in /crawl request bodies. Attackers can submit catastrophic-backtracking patterns via RegexExtractionStrategy.custom, RegexChunking.patterns or JsonCss, JsonXPath and JsonLxml schema regex fields against a crafted page to freeze the entire server, including /health.
CVSS 7.1 · High · EPSS 0.3% · Fix available
- Published
- Updated
Affected products and versions
crawl4ai
- Versions
- ≥ 0.7.0, < 0.9.5: Affected (semver)
- 0.9.5: Not affected (semver)
Update to 0.9.5
Original sources
- https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j843-8p47-rhxp
- https://github.com/unclecode/crawl4ai/commit/8aea2006e2cdb96a185e50b20633fc323dff6429
- https://github.com/unclecode/crawl4ai/releases/tag/v0.9.5
- https://github.com/unclecode/crawl4ai
- https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.5-redos-via-crawl-regex-fields
- https://nvd.nist.gov/vuln/detail/CVE-2026-115508