CVE Catalog

CVE-2026-39889

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.42%

34th percentile - higher than 34% of all known CVEs

Summary

PraisonAI before version 4.5.115 exposes the A2U (Agent-to-User) event stream server without authentication. The create_a2u_routes() function registers endpoints /a2u/info, /a2u/subscribe, /a2u/events/{stream_name}, /a2u/events/sub/{id}, and /a2u/health with no access controls.

Risk Assessment

An unauthenticated attacker can monitor all agent activity, leading to leakage of sensitive data and potential workflow manipulation.

Recommendation

Immediately upgrade PraisonAI to version 4.5.115, which fixes this vulnerability.

Other vulnerabilities in PraisonAI

See all
Original NVD description (English source)

PraisonAI is a multi-agent teams system. Prior to 4.5.115, the A2U (Agent-to-User) event stream server in PraisonAI exposes all agent activity without authentication. The create_a2u_routes() function registers the following endpoints with NO authentication checks: /a2u/info, /a2u/subscribe, /a2u/events/{stream_name}, /a2u/events/sub/{id}, and /a2u/health. This vulnerability is fixed in 4.5.115.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS