Skip to main content

Oxia CVE-2026-40946

| EUVDEUVD-2026-24512 CRITICAL
Improper Authentication (CWE-287)
2026-04-21 GitHub_M GHSA-fhvp-9hcj-6m33
9.2
CVSS 4.0 · GitHub Advisory
Share

Severity by source

GitHub Advisory PRIMARY
9.2 CRITICAL
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

5
Patch released
Apr 22, 2026 - 20:28 nvd
Patch available
Patch available
Apr 21, 2026 - 23:32 EUVD
CVSS changed
Apr 21, 2026 - 22:22 NVD
9.2 (CRITICAL)
EUVD ID Assigned
Apr 21, 2026 - 22:16 euvd
EUVD-2026-24512
CVE Published
Apr 21, 2026 - 21:18 nvd
CRITICAL 9.2

DescriptionGitHub Advisory

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.

Analysis

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.

Share

CVE-2026-40946 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy