CVE-2026-57146 PraisonAI A2U incomplete authentication fix leaves current serve command unauthenticated by default
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-57146?
CVE-2026-57146 is a high-severity vulnerability in MervinPraison PraisonAI, published on 23 Oct 2026.
Official description
PraisonAI is a multi-agent teams system. From version 4.5.115 to before version 4.6.61, the published A2U advisory GHSA-f292-66h9-fpmf says unauthenticated A2U event streaming was fixed in praisonai 4.5.115. Current head still exposes the same A2U subscription and event routes without authentication when the operator starts the documented CLI entrypoint. The current CLI wrapper does not expose --api-key, does not install the common API-key middleware, and does not generate a token for A2U. It calls create_a2u_routes(app) directly. That helper only enforces auth if A2U_AUTH_TOKEN is already present; if the variable is missing, _authenticate_request() returns None and treats auth as disabled. This issue has been patched in version 4.6.61.
Which versions are affected by CVE-2026-57146?
3 open source packages ship an affected version, including praisonai.
| Package | Affected | Fixed in |
|---|---|---|
praisonai PyPI | From 4.5.115 | 4.6.61 |
praisonai PyPI | From 4.5.115 | 4.6.61 |
praisonai PyPI | From 4.5.115 | 4.6.61 |
How do I fix CVE-2026-57146?
Upgrade praisonai to 4.6.61 or later.
Is CVE-2026-57146 being exploited?
There is no known exploitation of CVE-2026-57146 in the wild and no public exploit code.
Sources
Also known as GHSA-jxcw-qp4h-6jfq, PYSEC-2026-3515.