AIKIDO-2026-11063
crawl4ai is vulnerable to Code Injection
98
Critical Risk
This Affects:
crawl4aiTL;DR
The _safe_eval_expression() function in the computed fields feature uses an AST validator that only blocks attributes starting with underscore. Python generator and frame object attributes (gi_frame, f_back, f_builtins) do NOT start with underscore, enabling a complete sandbox escape to achieve arbitrary code execution.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
crawl4ai is vulnerable to Code Injection in versions 0.0.0 - 0.8.6.
How to fix this
Upgrade the crawl4ai library to the patch version.
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SOC 2Compliant
ISO 27001Compliant