CVE-2026-40946: critical vulnerability in oxia-db oxia
Oxia: OIDC token audience validation bypass via SkipClientIDCheck
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.2epss 0.3%
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 · oxiaRelated CVEs — oxia-db oxia
In the same product, most dangerous first.
CVE-2026-40945HIGHOxia: Bearer token exposed in debug log messages on authentication failureEPSS 0.3%CVE-2026-40943HIGHOxia: Server crash via race condition in session heartbeat handlingEPSS 0.2%CVE-2026-40944MEDIUMOxia: TLS CA certificate chain validation fails with multi-certificate PEM bundlesEPSS 0.2%