CVE-2026-55541: CWE-862: Missing Authorization in MervinPraison PraisonAI
Description
CVE-2026-55541 is a high-severity vulnerability in MervinPraison's PraisonAI multi-agent teams system. Before version 4.6.58, the system's serve agents and unified parse API endpoints lack proper credential checks, allowing unauthenticated access to POST /agents and POST /api/v1/agents/{id}/invoke. This missing authorization issue is addressed in version 4.6.58.
CVSS v4.0
Score 8.8high
Affected software
MervinPraison
PraisonAI
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
PraisonAI versions prior to 4.6.58 have a missing authorization vulnerability (CWE-862) in the _create_agents_app() and _create_unified_app() functions, which do not enforce credential checks. As a result, unauthenticated users can invoke sensitive API endpoints (POST /agents and POST /api/v1/agents/{id}/invoke) without authorization. This vulnerability has a CVSS 4.0 score of 8.8, indicating high severity. The issue is fixed in PraisonAI version 4.6.58.
Potential Impact
Unauthenticated attackers can access and invoke agent-related API endpoints, potentially allowing unauthorized actions within the PraisonAI system. This could lead to unauthorized command execution or manipulation of agent behaviors. The vulnerability does not require privileges or user interaction to exploit.
Mitigation Recommendations
Upgrade PraisonAI to version 4.6.58 or later, where the missing authorization checks have been implemented. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor stating the fix is in version 4.6.58.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T23:01:04.074Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8db46cacd9273b495e7a2b
Added to database: 08/25/2026, 15:27:40 UTC
Last enriched: 09/10/2026, 04:37:20 UTC
Last updated: 10/09/2026, 18:48:21 UTC
Views: 72
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