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OpenAdvisories
Critical · 9.2 CVE-2026-40946 EUVD-2026-24512GHSA-fhvp-9hcj-6m33GO-2026-5364

Oxia: OIDC token audience validation bypass via SkipClientIDCheck

Published Apr 21, 2026 · Updated Apr 22, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
oxia-db oxia < 0.16.2 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/oxia-db/oxia < 0.16.2 0.16.2 GHSA-fhvp-9hcj-6m33

Advisories 1

References