{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-115508", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-22T16:15:00.201Z", "datePublished": "2026-10-22T19:14:07.893Z", "dateUpdated": "2026-10-22T19:14:07.893Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-22T19:14:07.893Z"}, "datePublic": "2026-10-02T00:00:00.000Z", "title": "Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Inefficient Regular Expression Complexity", "cweId": "CWE-1333", "type": "CWE"}]}], "affected": [{"vendor": "unclecode", "product": "crawl4ai", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/crawl4ai", "versions": [{"version": "0.7.0", "status": "affected", "versionType": "semver", "lessThan": "0.9.5"}, {"version": "0.9.5", "status": "unaffected", "versionType": "semver"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j843-8p47-rhxp", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-j843-8p47-rhxp)"}, {"url": "https://github.com/unclecode/crawl4ai/commit/8aea2006e2cdb96a185e50b20633fc323dff6429", "tags": ["patch"]}, {"url": "https://github.com/unclecode/crawl4ai/releases/tag/v0.9.5", "tags": ["release-notes"], "name": "crawl4ai v0.9.5 Release Notes"}, {"url": "https://github.com/unclecode/crawl4ai", "tags": ["product"]}, {"name": "VulnCheck Advisory: Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.5-redos-via-crawl-regex-fields"}], "credits": [{"lang": "en", "value": "Zhixi Sun (manus-use)", "type": "finder"}, {"lang": "en", "value": "Siyang Wu", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.7.0,0.9.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "0.9.5"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "crawl4ai", "source": "cna", "vendor": "unclecode"}, "product": "crawl4ai", "vendor": "unclecode"}], "created": "2026-10-23T04:00:12.766071+00:00", "updated": "2026-10-23T04:45:13.871431+00:00", "vendors": ["unclecode", "unclecode$PRODUCT$crawl4ai"]}