CVE-2026-39889

Description

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.

PUBLISHED Reserved 2026-04-07 | Published 2026-04-08 | Updated 2026-04-10 | Assigner GitHub_M

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

References

github.com/...isonAI/security/advisories/GHSA-f292-66h9-fpmf

cve.org (CVE-2026-39889)

nvd.nist.gov (CVE-2026-39889)

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