Auth bypass in Volcengine Openviking
CVE-2026-75480
OpenViking debug vector scroll and count endpoints apply only account-level scoping without user-level access controls, allowing authenticated users to read all co-tenant records. Attackers can query these endpoints to retrieve private memories, resources, skills, and secret material belonging to other users in the same account without administrative privileges.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Volcengine Openviking — versions 0
Weakness classification (CWE)
References
- github.com/volcengine/OpenViking/issues/3724 (issue-tracking)
- github.com/volcengine/OpenViking (product)
- github.com/volcengine/OpenViking/blob/main/openviking/storage/viking_vector_ind… (technical-description)
- www.vulncheck.com/advisories/openviking-debug-vector-endpoints-multi-tenant-dat… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-75480?
- CVE-2026-75480 is a medium-severity vulnerability in Volcengine Openviking, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-08-17.
- How severe is CVE-2026-75480?
- Medium severity. CVSS v3 base score is 6.5 out of 10.