Auth bypass in Mervinpraison Praisonai
CVE-2026-55528
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, AgentServer exposes ServerConfig.auth_token but AgentServer._create_app does not check it on any route. A remote caller can subscribe, publish, and perform other actions without a valid bearer token or X-Auth-Token even when authentication is configured. This issue is fixed in version 1.6.58.
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N.
Affected products
- Mervinpraison Praisonai — versions < 4.6.58
- Mervinpraison Praisonaiagents — versions < 1.6.58
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55528?
- CVE-2026-55528 is a high-severity vulnerability in Mervinpraison Praisonai, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2026-08-25.
- How severe is CVE-2026-55528?
- High severity. CVSS v3 base score is 8.2 out of 10.