Vulnerability Description
OpenViking prior to version 0.3.9 contains an authentication bypass vulnerability in the VikingBot OpenAPI HTTP route surface where the authentication check fails open when the api_key configuration value is unset or empty. Remote attackers with network access to the exposed service can invoke privileged bot-control functionality without providing a valid X-API-Key header, including submitting attacker-controlled prompts, creating or using bot sessions, and accessing downstream tools, integrations, secrets, or data accessible to the bot.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Volcengine | Openviking | < 0.3.9 |
Related Weaknesses (CWE)
References
- https://github.com/volcengine/OpenViking/commit/c7bb1676f4d037609f041bf39e4e2bd5Patch
- https://github.com/volcengine/OpenViking/pull/1447ExploitPatchVendor Advisory
- https://github.com/volcengine/OpenViking/releases/tag/v0.3.9Release Notes
- https://www.vulncheck.com/advisories/openviking-authentication-bypass-via-vikingThird Party Advisory
FAQ
What is CVE-2026-40525?
CVE-2026-40525 is a vulnerability with a CVSS score of 9.1 (CRITICAL). OpenViking prior to version 0.3.9 contains an authentication bypass vulnerability in the VikingBot OpenAPI HTTP route surface where the authentication check fails open when the api_key configuration v...
How severe is CVE-2026-40525?
CVE-2026-40525 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-40525?
Check the references section above for vendor advisories and patch information. Affected products include: Volcengine Openviking.