CVE-2023-36820: Objectcomputing Micronaut Security

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Micronaut Security is a security solution for applications. Prior to versions 3.1.2, 3.2.4, 3.3.2, 3.4.3, 3.5.3, 3.6.6, 3.7.4, 3.8.4, 3.9.6, 3.10.2, and 3.11.1, IdTokenClaimsValidator skips `aud` claim validation if token is issued by same identity issuer/provider. Any OIDC setup using Micronaut where multiple OIDC applications exists for the same issuer but token auth are not meant to be shared. This issue has been patched in versions 3.1.2, 3.2.4, 3.3.2, 3.4.3, 3.5.3, 3.6.6, 3.7.4, 3.8.4, 3.9.6, 3.10.2, and 3.11.1.

Affected products

• Objectcomputing Micronaut Security: before 3.1.2 (fixed in 3.1.2); from 3.2.0, before 3.2.4 (fixed in 3.2.4); from 3.3.0, before 3.3.2 (fixed in 3.3.2); from 3.4.0, before 3.4.3 (fixed in 3.4.3); from 3.5.0, before 3.5.3 (fixed in 3.5.3); from 3.6.0, before 3.6.6 (fixed in 3.6.6); …

Published 2023-10-09. Last modified 2026-06-17.