{"affected":[{"defaultStatus":"unaffected","ecosystem":"golang","packageName":"github.com/openbao/openbao/v2","product":"openbao","source":"CNA: VulnCheck","vendor":"openbao","versions":[{"lessThan":"2.6.5","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.6.5","versionType":"semver"},{"lessThan":"2.7.2","status":"affected","version":"2.7.0","versionType":"semver"},{"status":"unaffected","version":"2.7.2","versionType":"semver"}]}],"cveId":"CVE-2026-126310","cwes":["CWE-287"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N","version":"4.0"},{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},{"score":7,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/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","version":"4.0"},{"score":8.7,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","version":"3.1"}],"modifiedAt":1794565056653,"publishedAt":1794562578944,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/openbao/openbao/security/advisories/GHSA-q824-44ff-f5j5"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/openbao-before-2.6.5-and-2.7.2-oidc-provider-authentication-bypass-via-client-credentials"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/openbao/openbao/security/advisories/GHSA-q824-44ff-f5j5"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/openbao-before-2.6.5-and-2.7.2-oidc-provider-authentication-bypass-via-client-credentials"}],"remediation":[],"revision":"e4e4a70baf885b32503a84c5398f77a713597d153fede5909b7a6b0ff9839c4b","sources":[{"modifiedAt":1794562578944,"name":"CNA: VulnCheck","retrievedAt":1794564595479,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126310"},{"modifiedAt":1794565056653,"name":"NVD","retrievedAt":1794572187761,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126310"}],"ssvc":null,"status":"published","title":"OpenBao before 2.6.5 and 2.7.2 OIDC Provider Authentication Bypass via Client Credentials","updatedAt":1794572187761}