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.

CVSS 4.0

7.2CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

EPSS

0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-10-18

Modified

2026-10-22

Record from

the NVD, synced 2026-10-22

References

• https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/gateway/auth/auth.go#L97-L110
• https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/gateway/auth/interceptor.go#L35-L40
• https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/gateway/proxy/proxy.go#L256-L300
• https://github.com/vanus-labs/vanus/issues/647
• https://www.vulncheck.com/advisories/vanus-0.8.0-through-0.9.0-missing-authorization-in-gateway-streaming-rpcs

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