High severity8.1NVD Advisory· Published Jun 23, 2026· Updated Jun 25, 2026
CVE-2026-56258
CVE-2026-56258
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
2- github.com/unclecode/crawl4ai/security/advisories/GHSA-7cx2-g3h9-382pnvdThird Party Advisory
- www.vulncheck.com/advisories/crawl4ai-arbitrary-file-write-via-output-path-symlink-and-toctounvdThird Party Advisory
News mentions
1- Unclecode Crawl4AI: Five CVEs Disclosed Together Reveal Auth Bypass, SSRF, and XSS FlawsVypr Intelligence · Jun 24, 2026