{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55776", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-17T14:40:28.379Z", "datePublished": "2026-09-15T15:43:29.564Z", "dateUpdated": "2026-09-15T15:43:29.564Z"}, "containers": {"cna": {"title": "OpenBao: Transit secrets engine crashes on key creation with `derived: true` for asymmetric key types", "problemTypes": [{"descriptions": [{"cweId": "CWE-617", "lang": "en", "description": "CWE-617: Reachable Assertion", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/openbao/openbao/security/advisories/GHSA-8w8f-r2xv-4q4j", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/openbao/openbao/security/advisories/GHSA-8w8f-r2xv-4q4j"}, {"name": "https://github.com/openbao/openbao/pull/3309", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/pull/3309"}, {"name": "https://github.com/openbao/openbao/pull/3312", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/pull/3312"}, {"name": "https://github.com/openbao/openbao/commit/bb17827f3e33779a10166f7d0e61b191c0facef9", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/commit/bb17827f3e33779a10166f7d0e61b191c0facef9"}, {"name": "https://github.com/openbao/openbao/commit/db57c62602b25da12951f3f0edb888e7c4da61e5", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/commit/db57c62602b25da12951f3f0edb888e7c4da61e5"}, {"name": "https://github.com/openbao/openbao/releases/tag/v2.5.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/releases/tag/v2.5.5"}, {"name": "https://github.com/openbao/openbao/releases/tag/v2.6.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/releases/tag/v2.6.0"}], "affected": [{"vendor": "openbao", "product": "openbao", "versions": [{"version": "< 2.5.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-15T15:43:29.564Z"}, "descriptions": [{"lang": "en", "value": "OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an authenticated OpenBao caller with write access to transit/keys/* could terminate the server process by setting derived to true while the type parameter selected rsa-, ecdsa-, or ed25519. The Transit policy creation path in builtin/logical/transit/backend.go and sdk/helper/keysutil/policy.go could reach an error path that double-unlocked a mutex while handling this invalid asymmetric derived-key combination, causing a panic, no HTTP response, process exit, and denial of service. JSON and HCL key-creation requests can express the triggering combination. This issue is fixed in version 2.5.5."}], "source": {"advisory": "GHSA-8w8f-r2xv-4q4j", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "openbao", "vendor": "openbao", "versions": [{"status": "affected", "version": "< 2.5.5"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an authenticated OpenBao caller with write access to transit/keys/* could terminate the server process by setting derived to true while the type parameter selected rsa-, ecdsa-, or ed25519. The Transit policy creation path in builtin/logical/transit/backend.go and sdk/helper/keysutil/policy.go could reach an error path that double-unlocked a mutex while handling this invalid asymmetric derived-key combination, causing a panic, no HTTP response, process exit, and denial of service. JSON and HCL key-creation requests can express the triggering combination. This issue is fixed in version 2.5.5."}], "id": "CVE-2026-55776", "lastModified": "2026-09-15T16:17:16.220", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-15T16:17:16.220", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/commit/bb17827f3e33779a10166f7d0e61b191c0facef9"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/commit/db57c62602b25da12951f3f0edb888e7c4da61e5"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/pull/3309"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/pull/3312"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/releases/tag/v2.5.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/releases/tag/v2.6.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/security/advisories/GHSA-8w8f-r2xv-4q4j"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-617"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}