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## https://sploitus.com/exploit?id=89F45BC2-5B61-56B8-AD6F-B97F1F503F94
# CVE-2026-53753 โ€” Crawl4AI AST Sandbox Escape โ†’ Pre-Auth RCE

**CVSS 10.0 CRITICAL** | CWE-94 / CWE-913 | No auth required (JWT disabled by default)

Crawl4AI = 0.8.7. The fix replaces the blocklist-based AST validator with a strict allowlist of permitted attribute names and blocks lambdas, comprehensions, and generators entirely.