CVE-2026-111998
CVE-2026-111998
Vanus 0.8.0 through 0.9.0 contains a default credentials vulnerability that allows unauthenticated remote attackers to gain cluster-admin access by using the hardcoded admin token. Attackers can send the fixed Bearer token to the gateway gRPC proxy port to manage namespaces, eventbuses, users, tokens, and role bindings, and read or publish events.
Published .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- github.com/vanus-labs/vanus/issues/647 (issue-tracking)
- github.com/vanus-labs/vanus/blob/v0.9.0/internal/controller/tenant/controller.go (technical-description)
- github.com/vanus-labs/vanus/blob/v0.9.0/internal/primitive/constants.go (technical-description)
- www.vulncheck.com/advisories/vanus-0.8.0-through-0.9.0-default-admin-credential… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111998?
- CVE-2026-111998 is a critical-severity vulnerability, classified under CWE-1392. CVSS score: 9.8/10. Published 2026-10-18.
- How severe is CVE-2026-111998?
- Critical severity. CVSS v3 base score is 9.8 out of 10.