Medium severity4.8NVD Advisory· Published Oct 9, 2023· Updated Jun 17, 2026
CVE-2023-36820
CVE-2023-36820
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.11.0, < 3.11.1 | 3.11.1 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.10.0, < 3.10.2 | 3.10.2 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.9.0, < 3.9.6 | 3.9.6 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.8.0, < 3.8.4 | 3.8.4 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.7.0, < 3.7.4 | 3.7.4 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.6.0, < 3.6.6 | 3.6.6 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.5.0, < 3.5.3 | 3.5.3 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.4.0, < 3.4.3 | 3.4.3 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.3.0, < 3.3.2 | 3.3.2 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.2.0, < 3.2.4 | 3.2.4 |
io.micronaut.security:micronaut-security-oauth2Maven | >= 3.1.0, < 3.1.2 | 3.1.2 |
Affected products
4cpe:2.3:a:objectcomputing:micronaut_security:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:objectcomputing:micronaut_security:*:*:*:*:*:*:*:*range: <3.1.2
- cpe:2.3:a:objectcomputing:micronaut_security:3.11.0:*:*:*:*:*:*:*
- Range: >= 3.11.0, < 3.11.1
Patches
Vulnerability mechanics
References
5- github.com/micronaut-projects/micronaut-security/commit/9728b925221a0d87798ccf250657a3c214b7e980nvdPatchWEB
- github.com/micronaut-projects/micronaut-security/security/advisories/GHSA-qw22-8w9r-864hnvdExploitMitigationThird Party AdvisoryWEB
- github.com/advisories/GHSA-qw22-8w9r-864hghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2023-36820ghsaADVISORY
- github.com/micronaut-projects/micronaut-security/blob/master/security-oauth2/src/main/java/io/micronaut/security/oauth2/client/IdTokenClaimsValidator.javaghsaWEB
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