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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- 7.2 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.29% probability · 21th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Source
- disclosure@vulncheck.com
EPSS moved from 0.3% on 19 October 2026 to 0.3% on 26 October 2026.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.