{"id":"CVE-2026-56264","title":"Crawl4AI - Arbitrary JavaScript Execution via /execute_js Endpoint","summary":"Crawl4AI before 0.8.7 contains an arbitrary JavaScript execution vulnerability in the Docker API server's /execute_js endpoint, which accepts and executes arbitrary user-supplied JavaScript in the server's browser context with --disable-…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-94"],"vendor":"Crawl4AI","product":"Crawl4AI","affected":["Crawl4AI < 0.8.7"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-07-01T14:59:05.343380Z"},"published":"2026-06-30","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:05:50.381Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56264","references":[{"url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg","label":"GitHub Security Advisory (GHSA-365w-hqf6-vxfg)"},{"url":"https://github.com/unclecode/crawl4ai","label":"https://github.com/unclecode/crawl4ai"},{"url":"https://www.vulncheck.com/advisories/crawl4ai-arbitrary-javascript-execution-via-execute-js-endpoint","label":"VulnCheck Advisory: Crawl4AI - Arbitrary JavaScript Execution via /execute_js Endpoint"}],"tags":["cve.org"],"epss":0.00488,"epssPercentile":0.42261,"ingestedAt":"2026-11-08T14:51:22.362Z","slug":"CVE-2026-56264","body":"## Overview\n\nCrawl4AI before 0.8.7 contains an arbitrary JavaScript execution vulnerability in the Docker API server's /execute_js endpoint, which accepts and executes arbitrary user-supplied JavaScript in the server's browser context with --disable-web-security enabled. An attacker can execute arbitrary JavaScript and, combined with the browser's relaxed security settings, perform server-side request forgery against internal services.\n\n## Affected\n\n- `Crawl4AI < 0.8.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}