{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45039", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-08T18:07:27.341Z", "datePublished": "2026-05-28T18:39:54.794Z", "dateUpdated": "2026-05-28T18:39:54.794Z"}, "containers": {"cna": {"title": "RustFS: Internode RPC HMAC secret falls back to public default credential, enabling peer impersonation", "problemTypes": [{"descriptions": [{"cweId": "CWE-798", "lang": "en", "description": "CWE-798: Use of Hard-coded Credentials", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1392", "lang": "en", "description": "CWE-1392: Use of Default Credentials", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/rustfs/rustfs/security/advisories/GHSA-r5qv-rc46-hv8q", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/rustfs/rustfs/security/advisories/GHSA-r5qv-rc46-hv8q"}], "affected": [{"vendor": "rustfs", "product": "rustfs", "versions": [{"version": "< 1.0.0-beta.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-28T18:39:54.794Z"}, "descriptions": [{"lang": "en", "value": "RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, the internode RPC layer authenticates every request with an HMAC-SHA256 signature using a shared secret. The function that produces this secret, get_shared_secret() in crates/ecstore/src/rpc/http_auth.rs, falls back to the public, source-tree-embedded DEFAULT_SECRET_KEY = \"rustfsadmin\" when neither the RUSTFS_RPC_SECRET environment variable nor the global S3 secret key has been configured. This vulnerability is fixed in 1.0.0-beta.2."}], "source": {"advisory": "GHSA-r5qv-rc46-hv8q", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, the internode RPC layer authenticates every request with an HMAC-SHA256 signature using a shared secret. The function that produces this secret, get_shared_secret() in crates/ecstore/src/rpc/http_auth.rs, falls back to the public, source-tree-embedded DEFAULT_SECRET_KEY = \"rustfsadmin\" when neither the RUSTFS_RPC_SECRET environment variable nor the global S3 secret key has been configured. This vulnerability is fixed in 1.0.0-beta.2."}], "id": "CVE-2026-45039", "lastModified": "2026-05-28T19:16:38.390", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-28T19:16:38.390", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/rustfs/rustfs/security/advisories/GHSA-r5qv-rc46-hv8q"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-798"}, {"lang": "en", "value": "CWE-1392"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}