CVE-2026-34952 PraisonAI: Missing Authentication in WebSocket Gateway

What is CVE-2026-34952?

CVE-2026-34952 is a critical missing authorization vulnerability in MervinPraison PraisonAI, published on 3 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

PraisonAI is a multi-agent teams system. Prior to version 4.5.97, the PraisonAI Gateway server accepts WebSocket connections at /ws and serves agent topology at /info with no authentication. Any network client can connect, enumerate registered agents, and send arbitrary messages to agents and their tool sets. This issue has been patched in version 4.5.97.

Weakness: CWE-306

Which versions are affected by CVE-2026-34952?

3 open source packages ship an affected version, including praisonai. It affects 1 product.

Products include Praison Praisonai.

How do I fix CVE-2026-34952?

Upgrade praisonai to 4.5.97 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-34952 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34952 exists.

Other vulnerabilities in MervinPraison PraisonAI

• CVE-2026-39888 PraisonAIAgents has a sandbox escape via exception frame traversal in `execute_code` (subprocess mode) Critical 10.0
• CVE-2026-41497 Incomplete fix for CVE-2026-34935: Command Injection in MervinPraison/PraisonAI Critical 9.8
• CVE-2026-40288 PraisonAI: Critical RCE via `type: job` workflow YAML Critical 9.8
• CVE-2026-39890 PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading Critical 9.8
• CVE-2026-34934 PraisonAI: Second-Order SQL Injection in `get_all_user_threads` Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-cfh6-vr3j-qc3g, PYSEC-2026-474.