{"id":"CVE-2026-115508","published":"2026-10-22T20:17:06.910","lastModified":"2026-10-23T13:19:11.597","description":"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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-1333"],"vendors":[],"products":[],"references":[{"url":"https://github.com/unclecode/crawl4ai","tags":[]},{"url":"https://github.com/unclecode/crawl4ai/commit/8aea2006e2cdb96a185e50b20633fc323dff6429","tags":[]},{"url":"https://github.com/unclecode/crawl4ai/releases/tag/v0.9.5","tags":[]},{"url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j843-8p47-rhxp","tags":[]},{"url":"https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.5-redos-via-crawl-regex-fields","tags":[]}],"exploitRefs":[{"url":"https://github.com/unclecode/crawl4ai","tags":[]},{"url":"https://github.com/unclecode/crawl4ai/commit/8aea2006e2cdb96a185e50b20633fc323dff6429","tags":[]},{"url":"https://github.com/unclecode/crawl4ai/releases/tag/v0.9.5","tags":[]},{"url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j843-8p47-rhxp","tags":[]}],"hasPoc":true,"ai":null}