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Advisories & recorded fixes

high8.8
CVE-2026-123783

Skyvern through 1.0.56 Script Sandbox Bypass via types.CodeType Bytecode

Skyvern through 1.0.56 contains a sandbox bypass vulnerability that allows authenticated users to execute code by reconstructing functions from raw bytecode with types.CodeType. Attackers can deploy scripts that evade the is_safe_script_code AST denylist and import blocked modules such as subprocess or socket to run code in the Skyvern server process.

No structured fix or guidance is available here. Check the latest publisher advisory.

Exploitation not established

Skyvern-AI · skyvern