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CVE-2026-54769 is a critical sandbox escape vulnerability in Langroid affecting versions prior to 0.65.2. The flaw is present in the framework’s TableChatAgent and VectorStore capabilities when LLM-generated tool messages are evaluated with full_eval enabled. The vulnerable implementation attempts to constrain Python eval() by passing an empty locals dictionary, but fails to explicitly remove builtins from the globals mapping. Under Python’s execution model, built-ins are implicitly made available in that situation, allowing evaluated expressions to access dangerous functionality and escape the intended sandbox. Because TableChatAgent’s evaluation path executes external LLM-produced expressions natively, an attacker able to supply crafted prompt payloads can trigger arbitrary code execution on the host.
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No public exploit code observed for this vulnerability.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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