{"id":"CVE-2026-115508","title":"Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields","summary":"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 ca…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-1333"],"vendor":"unclecode","product":"crawl4ai","affected":["crawl4ai >= 0.7.0 < 0.9.5"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T19:14:07.893Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115508","references":[{"url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j843-8p47-rhxp","label":"GitHub Security Advisory (GHSA-j843-8p47-rhxp)"},{"url":"https://github.com/unclecode/crawl4ai/commit/8aea2006e2cdb96a185e50b20633fc323dff6429"},{"url":"https://github.com/unclecode/crawl4ai/releases/tag/v0.9.5","label":"crawl4ai v0.9.5 Release Notes"},{"url":"https://github.com/unclecode/crawl4ai"},{"url":"https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.5-redos-via-crawl-regex-fields","label":"VulnCheck Advisory: Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T22:00:50.411Z","slug":"CVE-2026-115508","body":"## Overview\n\nCrawl4AI 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.\n\n## Affected\n\n- `crawl4ai >= 0.7.0 < 0.9.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}