Vulnerability in Volcengine Openviking
CVE-2026-40525
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 attacker…
EPSS: 0.002 (41.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Volcengine Openviking — versions 0, c7bb1676f4d037609f041bf39e4e2bd52e8f9820
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes, Release Notes)
- disclosure@vulncheck.com (issue-tracking, Exploit, Patch, Vendor Advisory)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-40525?
- CVE-2026-40525 is a critical-severity vulnerability in Volcengine Openviking, classified under CWE-636. CVSS score: 9.1/10. Published 2026-04-17.
- How severe is CVE-2026-40525?
- Critical severity. CVSS v3 base score is 9.1 out of 10.