{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73499", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-12T19:00:33.736Z", "datePublished": "2026-08-12T21:20:31.888Z", "dateUpdated": "2026-08-12T21:20:31.888Z"}, "containers": {"cna": {"title": "etcd: Watch API authorization bypass via open-ended range requests", "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/etcd-io/etcd/security/advisories/GHSA-xg4h-6gfc-h4m8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-xg4h-6gfc-h4m8"}, {"name": "https://github.com/etcd-io/etcd/commit/6643f80602461a6095c9b294b6512fd9719bef41", "tags": ["x_refsource_MISC"], "url": "https://github.com/etcd-io/etcd/commit/6643f80602461a6095c9b294b6512fd9719bef41"}, {"name": "https://github.com/etcd-io/etcd/commit/7cf71ec9e2ec54230a5454392fa4ffd4574b41ed", "tags": ["x_refsource_MISC"], "url": "https://github.com/etcd-io/etcd/commit/7cf71ec9e2ec54230a5454392fa4ffd4574b41ed"}, {"name": "https://github.com/etcd-io/etcd/commit/afeaa624da19085b47fb5ccc7c22a8c421bc2eae", "tags": ["x_refsource_MISC"], "url": "https://github.com/etcd-io/etcd/commit/afeaa624da19085b47fb5ccc7c22a8c421bc2eae"}, {"name": "https://github.com/etcd-io/etcd/commit/e863b001bbf3367003a543aa3099db9892134cd7", "tags": ["x_refsource_MISC"], "url": "https://github.com/etcd-io/etcd/commit/e863b001bbf3367003a543aa3099db9892134cd7"}, {"name": "https://github.com/etcd-io/etcd/releases/tag/v3.5.33", "tags": ["x_refsource_MISC"], "url": "https://github.com/etcd-io/etcd/releases/tag/v3.5.33"}, {"name": "https://github.com/etcd-io/etcd/releases/tag/v3.6.14", "tags": ["x_refsource_MISC"], "url": "https://github.com/etcd-io/etcd/releases/tag/v3.6.14"}, {"name": "https://github.com/etcd-io/etcd/releases/tag/v3.7.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/etcd-io/etcd/releases/tag/v3.7.1"}], "affected": [{"vendor": "etcd-io", "product": "etcd", "versions": [{"version": "< 3.5.33", "status": "affected"}, {"version": ">= 3.6.0, < 3.6.14", "status": "affected"}, {"version": ">= 3.7.0-alpha.0, < 3.7.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-12T21:20:31.888Z"}, "descriptions": [{"lang": "en", "value": "etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, and 3.7.1, a user granted READ permission on a single exact key can use the Watch gRPC API with clientv3.WithFromKey() to receive watch events for every key lexicographically greater than or equal to the permitted key. In server/etcdserver/api/v3rpc/watch.go, the open-ended RangeEnd sentinel is rewritten before the RBAC permission check in server/auth/range_perm_cache.go function isRangeOpPermitted, causing the request to be treated as an exact-key watch. Range/Get and DeleteRange requests are not affected, and the issue affects only clusters with authentication enabled. This issue is fixed in versions 3.5.33, 3.6.14, and 3.7.1."}], "source": {"advisory": "GHSA-xg4h-6gfc-h4m8", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "etcd", "vendor": "etcd-io", "versions": [{"status": "affected", "version": "< 3.5.33"}, {"status": "affected", "version": ">= 3.6.0, < 3.6.14"}, {"status": "affected", "version": ">= 3.7.0-alpha.0, < 3.7.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, and 3.7.1, a user granted READ permission on a single exact key can use the Watch gRPC API with clientv3.WithFromKey() to receive watch events for every key lexicographically greater than or equal to the permitted key. In server/etcdserver/api/v3rpc/watch.go, the open-ended RangeEnd sentinel is rewritten before the RBAC permission check in server/auth/range_perm_cache.go function isRangeOpPermitted, causing the request to be treated as an exact-key watch. Range/Get and DeleteRange requests are not affected, and the issue affects only clusters with authentication enabled. This issue is fixed in versions 3.5.33, 3.6.14, and 3.7.1."}], "id": "CVE-2026-73499", "lastModified": "2026-08-12T22:17:17.130", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-12T22:17:17.130", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/etcd-io/etcd/commit/6643f80602461a6095c9b294b6512fd9719bef41"}, {"source": "security-advisories@github.com", "url": "https://github.com/etcd-io/etcd/commit/7cf71ec9e2ec54230a5454392fa4ffd4574b41ed"}, {"source": "security-advisories@github.com", "url": "https://github.com/etcd-io/etcd/commit/afeaa624da19085b47fb5ccc7c22a8c421bc2eae"}, {"source": "security-advisories@github.com", "url": "https://github.com/etcd-io/etcd/commit/e863b001bbf3367003a543aa3099db9892134cd7"}, {"source": "security-advisories@github.com", "url": "https://github.com/etcd-io/etcd/releases/tag/v3.5.33"}, {"source": "security-advisories@github.com", "url": "https://github.com/etcd-io/etcd/releases/tag/v3.6.14"}, {"source": "security-advisories@github.com", "url": "https://github.com/etcd-io/etcd/releases/tag/v3.7.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-xg4h-6gfc-h4m8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}