PYSEC-2026-3533 PraisonAI: execute_code sandbox bypass: str.format C-level attribute access reads every blocklisted dunder

Summary The executecode tool's subprocess sandbox advertises a three-layer defense AST validation, text-pattern blocklist, restricted builtins. In sandbox mode the default only two layers are active — the text-pattern blocklist is skipped — and both remaining layers are bypassed by combining two...

PraisonAI: execute_code sandbox bypass: str.format C-level attribute access reads every blocklisted dunder

SummaryThe executecode tool's subprocess sandbox advertises a three-layer defense AST validation, text-pattern blocklist, restricted builtins. In sandbox mode the default only two layers are active — the text-pattern blocklist is skipped — and both remaining layers are bypassed by combining two...

CVE-2026-34371

LibreChat is a ChatGPT clone with additional features. Prior to 0.8.4, LibreChat trusts the name field returned by the executecode sandbox when persisting code-generated artifacts. On deployments using the default local file strategy, a malicious artifact filename containing traversal sequences f...

EUVD-2026-19946

LibreChat is a ChatGPT clone with additional features. Prior to 0.8.4, LibreChat trusts the name field returned by the executecode sandbox when persisting code-generated artifacts. On deployments using the default local file strategy, a malicious artifact filename containing traversal sequences f...