CVE-2026-40946
Oxia: OIDC token audience validation bypass via SkipClientIDCheck
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 9.2EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
21 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Oxia is a metadata store and coordination system. Prior to 0.16.2, the OIDC authentication provider unconditionally sets SkipClientIDCheck: true in the go-oidc verifier configuration, disabling the standard audience (aud) claim validation at the library level. This allows tokens issued for unrelated services by the same OIDC issuer to be accepted by Oxia. This vulnerability is fixed in 0.16.2.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
oxia-db · oxiaWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →