{
    "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": "2026-08-14T22:19:59.624Z"
    },
    "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"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-14T22:19:48.980697Z",
                                "id": "CVE-2026-73499",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-14T22:19:59.624Z"
                }
            }
        ]
    }
}