CVE-2026-33940: Insecure Ast Node Return
Returning a pre-parsed AST node (e.g., 'Program') directly without structural validation can lead to arbitrary code execution if the input is attacker-controlled. A crafted object can bypass compilation guards and inject arbitrary code. Ensure that dynamically provided ASTs are validated against type confusion and unexpected literals before processing.
JSgreprules fetch cve-2026-33940-insecure-ast-node-return --engine opengrepDescription
Returning a pre-parsed AST node (e.g., 'Program') directly without structural validation can lead to arbitrary code execution if the input is attacker-controlled. A crafted object can bypass compilation guards and inject arbitrary code. Ensure that dynamically provided ASTs are validated against type confusion and unexpected literals before processing.
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