{"cve":"CVE-2023-36820","nvd":{"published":"2023-10-09T14:15:10.640","modified":"2026-06-17T06:07:08.750","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5},"cwes":["CWE-284"],"references":["https://github.com/micronaut-projects/micronaut-security/commit/9728b925221a0d87798ccf250657a3c214b7e980","https://github.com/micronaut-projects/micronaut-security/security/advisories/GHSA-qw22-8w9r-864h","https://github.com/micronaut-projects/micronaut-security/commit/9728b925221a0d87798ccf250657a3c214b7e980","https://github.com/micronaut-projects/micronaut-security/security/advisories/GHSA-qw22-8w9r-864h"],"products":["objectcomputing:micronaut_security"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-36820","score":0.0053,"percentile":0.44855,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qw22-8w9r-864h","url":"https://osv.dev/vulnerability/GHSA-qw22-8w9r-864h","summary":"io.micronaut.security:micronaut-security-oauth2 has invalid IdTokenClaimsValidator logic on aud","modified":"2026-09-10T03:49:25.100890923Z","packages":[{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.11.0 <3.11.1"],"fixed":["3.11.1"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.10.0 <3.10.2"],"fixed":["3.10.2"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.9.0 <3.9.6"],"fixed":["3.9.6"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.8.0 <3.8.4"],"fixed":["3.8.4"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.7.0 <3.7.4"],"fixed":["3.7.4"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.6.0 <3.6.6"],"fixed":["3.6.6"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.5.0 <3.5.3"],"fixed":["3.5.3"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.4.0 <3.4.3"],"fixed":["3.4.3"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.3.0 <3.3.2"],"fixed":["3.3.2"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.2.0 <3.2.4"],"fixed":["3.2.4"]},{"ecosystem":"Maven","name":"io.micronaut.security:micronaut-security-oauth2","purl":"pkg:maven/io.micronaut.security/micronaut-security-oauth2","ranges":[">=3.1.0 <3.1.2"],"fixed":["3.1.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}