PraisonAI has Unauthenticated SSE Event Stream Exposes All Agent Activity in A2U Server (MervinPraison PraisonAI)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.42 % · percentile 36 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | GitHub_M |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD · security-advisories@github.com (Secondary) |
Advisories
- GHSA-f292-66h9-fpmf — PraisonAI Has Unauthenticated SSE Event Stream that Exposes All Agent Activity in A2U Server
- PYSEC-2026-2911 — PraisonAI Has Unauthenticated SSE Event Stream that Exposes All Agent Activity in A2U Server
European references
- ENISA EUVD · EUVD-2026-20636
- GCVE · GCVE-0-2026-39889
Affected configurations (NVD CPE)
cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*≤ 4.5.114
Affected products
| Product | Versions |
|---|---|
| MervinPraison · PraisonAI | affected < 4.5.115 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |