{"id":"CVE-2026-126310","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-126310","summary":"OpenBao before 2.6.5 and 2.7.2 contains an authentication bypass vulnerability that allows unauthenticated callers to obtain OIDC ID tokens by abusing public clients with client_credentials…","details":"OpenBao before 2.6.5 and 2.7.2 contains an authentication bypass vulnerability that allows unauthenticated callers to obtain OIDC ID tokens by abusing public clients with client_credentials enabled. Attackers who know a public client's client_id can request tokens from the identity/oidc/provider/<name>/token endpoint to impersonate the client without any secret.","published":"2026-11-13T09:36:18.944Z","modified":"2026-11-13T09:36:18.944Z","cvss":{"score":8.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/openbao/openbao/security/advisories/GHSA-q824-44ff-f5j5"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openbao-before-2.6.5-and-2.7.2-oidc-provider-authentication-bypass-via-client-credentials"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-13T09:36:18.944Z"}}