CVE-2026-40946 — Oxia: OIDC token audience validation bypass via SkipClientIDCheck
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 configur…
Published: 2026-04-21 · CVSS: 9.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7