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CVE-2026-57140 is an improper authentication vulnerability in the npm package praisonai AgentOS. A remotely reachable TypeScript AgentOS service exposes HTTP endpoints that allow unauthenticated users to enumerate configured agents and invoke them without credentials. Specifically, the vulnerable behavior permits disclosure of agent metadata, including names, roles, and instruction prefixes, and allows direct interaction with configured agents through exposed API functionality. The issue stems from missing or insufficient authentication enforcement on non-health application routes in deployments where the service is reachable by attackers.
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What an attacker gets, and what they’ve been doing with it.
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Cross-references every affected SKU, including bundled OEM variants.
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