CVE-2026-55534: CWE-306: Missing Authentication for Critical Function in MervinPraison PraisonAI
Description
PraisonAI versions from 4.6.34 up to but not including 4.6.58 have a missing authentication vulnerability in the _create_agents_app() function. Specifically, the server accepts an --api-key parameter, but does not authenticate POST requests to /agents or /agents/{agent_name}, allowing network callers to invoke configured agents without credentials. This issue is fixed in version 4.6.58.
CVSS v3.1
Score 8.6high
Affected software
MervinPraison
PraisonAI
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-55534 describes a missing authentication vulnerability (CWE-306) in MervinPraison's PraisonAI multi-agent teams system. Between versions 4.6.34 and 4.6.58, the _create_agents_app() function fails to authenticate POST requests to /agents endpoints despite the presence of an API key mechanism. This allows unauthenticated network callers to invoke configured agents, potentially leading to unauthorized actions. The vulnerability is resolved in version 4.6.58.
Potential Impact
An attacker on the network can invoke configured agents without providing valid credentials, bypassing the intended API key authentication. This can lead to unauthorized information disclosure (low confidentiality impact), unauthorized modification or control of agents (low integrity impact), and significant disruption or denial of service (high availability impact).
Mitigation Recommendations
Upgrade PraisonAI to version 4.6.58 or later, where this authentication issue is fixed. No other official remediation or temporary fix is documented. Until upgrading, restrict network access to the affected endpoints to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T23:01:04.074Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8dac49acd9273b4955690d
Added to database: 08/25/2026, 14:52:57 UTC
Last enriched: 09/10/2026, 04:37:46 UTC
Last updated: 10/09/2026, 18:48:21 UTC
Views: 68
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