CVE-2026-56258: critical vulnerability in Crawl4AI
Crawl4AI - Arbitrary File Write via output_path Symlink and TOCTOU
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.2epss 0.9%
Crawl4AI before 0.8.8 contains an arbitrary file write vulnerability in the screenshot and PDF endpoints that allows unauthenticated attackers to write files outside the intended directory via symlink and time-of-check-time-of-use (TOCTOU) attacks on the output_path parameter. Remote attackers can exploit insufficient path validation and symlink following to achieve arbitrary file write and potential code execution on systems where the runtime user has write access to executable or cron locations.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Crawl4AI · Crawl4AIRelated CVEs — Crawl4AI
In the same product, most dangerous first.
CVE-2026-56265CRITICALCrawl4AI - Authentication Bypass via Hardcoded JWT Signing KeyEPSS 2.6%CVE-2026-56262MEDIUMCrawl4AI - Unauthenticated Access to Monitor Endpoints via Docker API ServerEPSS 0.8%CVE-2026-56260HIGHCrawl4AI - Arbitrary File Write via output_path ParameterEPSS 0.6%CVE-2026-56261CRITICALCrawl4AI - Server-Side Request Forgery via Webhook URLsEPSS 0.5%CVE-2026-56264CRITICALCrawl4AI - Arbitrary JavaScript Execution via /execute_js EndpointEPSS 0.5%CVE-2026-56266CRITICALCrawl4AI - Server-Side Request Forgery via Direct Crawl EndpointsEPSS 0.5%