CVE-2026-55528: CWE-306: Missing Authentication for Critical Function in MervinPraison PraisonAI
Description
PraisonAI versions prior to 1.6.58 have a missing authentication check on AgentServer routes, allowing remote callers to perform actions without valid tokens even when authentication is configured. This vulnerability is fixed in version 1.6.58.
CVSS v3.1
Score 8.2high
Affected software
MervinPraison
PraisonAI
MervinPraison
praisonaiagents
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-55528 describes a missing authentication vulnerability (CWE-306) in MervinPraison's PraisonAI multi-agent system. Before version 1.6.58, the AgentServer exposes ServerConfig.auth_token but does not verify it in the _create_app method for any route. This allows unauthenticated remote callers to subscribe, publish, and perform other actions without a valid bearer token or X-Auth-Token, bypassing intended authentication controls. The issue is resolved in PraisonAI version 1.6.58.
Potential Impact
An attacker can remotely invoke critical functions on the AgentServer without authentication, potentially leading to unauthorized information disclosure (low confidentiality impact) and unauthorized modification of data or state (high integrity impact). Availability is not affected. This could compromise the security of the multi-agent system by allowing unauthorized operations.
Mitigation Recommendations
Upgrade PraisonAI to version 1.6.58 or later, where the authentication check on AgentServer routes is properly enforced. No other mitigation or workaround is indicated in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T23:01:04.073Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8dac49acd9273b49556907
Added to database: 08/25/2026, 14:52:57 UTC
Last enriched: 09/10/2026, 04:52:07 UTC
Last updated: 10/09/2026, 06:48:18 UTC
Views: 62
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