CVE-2026-112000
CVE-2026-112000
Vanus 0.8.0 through 0.9.0 contains a missing authorization vulnerability in the gateway that allows any authenticated user to call Subscribe, Ack, and unregistered methods without permission checks. Attackers can supply another tenant's subscription ID to Subscribe to hijack it, read and acknowledge its events, starve the legitimate consumer, and enumerate cluster users via ListUser.
Vulnerability class: Broken Access Control
Published .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L.
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/gateway/auth/interceptor.go (technical-description)
- github.com/vanus-labs/vanus/blob/v0.9.0/internal/gateway/auth/auth.go (technical-description)
- github.com/vanus-labs/vanus/blob/v0.9.0/internal/gateway/proxy/proxy.go (technical-description)
- www.vulncheck.com/advisories/vanus-0.8.0-through-0.9.0-missing-authorization-in… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112000?
- CVE-2026-112000 is a high-severity vulnerability, classified under Missing Authorization. CVSS score: 7.6/10. Published 2026-10-18.
- How severe is CVE-2026-112000?
- High severity. CVSS v3 base score is 7.6 out of 10.