PatchSiren cyber security CVE debrief
CVE-2026-61426 MervinPraison CVE debrief
CVE-2026-61426 involves PraisonAI, a tool that offers AI functionalities. The vulnerability arises from its insecure default configuration, which binds to all interfaces without requiring an API key and with wildcard CORS enabled. This setup allows unauthenticated attackers to access certain endpoints, such as GET /api/agents to read agent instructions and system prompts, or POST /api/chat to invoke agents.
- Vendor
- MervinPraison
- Product
- PraisonAI
- CVSS
- HIGH 8.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-11
- Original CVE updated
- 2026-07-11
- Advisory published
- 2026-07-11
- Advisory updated
- 2026-07-11
Who should care
Users and administrators of PraisonAI versions before 1.7.3 should be aware of this vulnerability. Given the high CVSS score of 8.8, indicating a high severity, immediate attention is required to secure the environment by updating to a secure version or applying appropriate mitigations.
Technical summary
The vulnerability in PraisonAI before version 1.7.3 stems from insecure default settings. By default, the application binds to all available network interfaces and does not enforce API key authentication. Furthermore, it allows cross-origin resource sharing (CORS) with a wildcard, making it accessible from any domain. This misconfiguration enables attackers to exploit the API endpoints without authentication. Specifically, an attacker can use the GET /api/agents endpoint to retrieve agent instructions and system prompts or utilize the POST /api/chat endpoint to invoke agents, all without needing any form of authentication.
Defensive priority
High
Recommended defensive actions
- Update PraisonAI to version 1.7.3 or later to fix the insecure default configuration.
- Implement API key authentication for all API endpoints.
- Restrict CORS settings to only allow requests from trusted domains.
- Monitor API usage for suspicious activity.
- Perform regular security audits and configuration reviews.
Evidence notes
The CVE record was published on 2026-07-11T14:16:22.483Z and has not been modified since then. The NVD entry is currently in the 'Received' status. References include the CVE.org record, NVD detail page, and advisories from Vulncheck.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-11T14:16:22.483Z and has not been modified since then. The NVD entry is currently in the 'Received' status.