CVE-2026-73499

🗓️ 12 Aug 2026 21:20:31Reported by GitHub_MType

cve🔗 web.nvd.nist.gov👁 64 Views🌐 WEB

etcd versions before 3.5.33, 3.6.14, and 3.7.1 allow Watch API authorization bypass via open-ended range requests.

Reporter	Title	Published	Views	Family All 148
attackerkb	CVE-2026-73499	12 Aug 202621:20	–	attackerkb
Chainguard	CVE-2026-73499 vulnerabilities	20 Aug 202602:17	–	cgr
Cvelist	CVE-2026-73499 etcd: Watch API authorization bypass via open-ended range requests	12 Aug 202621:20	–	cvelist
Debian CVE	CVE-2026-73499	12 Aug 202621:20	–	debiancve
EUVD	EUVD-2026-57641	12 Aug 202621:20	–	euvd
Github Security Blog	etcd: Watch API authorization bypass via open-ended range requests	24 Jul 202622:38	–	github
NVD	CVE-2026-73499	12 Aug 202622:17	–	nvd
OSV	BELL-CVE-2026-73499	15 Aug 202606:06	–	osv
OSV	BIT-ETCD-2026-73499 etcd: Watch API authorization bypass via open-ended range requests	18 Aug 202610:03	–	osv
OSV	CGA-22M5-GXCX-QMGP	19 Aug 202613:06	–	osv

Vulners

Node

etcd etcdRange<3.5.33

etcd etcdRange3.6.0–3.6.14

etcd etcdRange3.7.0-alpha.0–3.7.1

[
  {
    "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"
      }
    ]
  }
]

Source	Link
github	www.github.com/etcd-io/etcd/commit/afeaa624da19085b47fb5ccc7c22a8c421bc2eae
github	www.github.com/etcd-io/etcd/security/advisories/GHSA-xg4h-6gfc-h4m8
github	www.github.com/etcd-io/etcd/commit/e863b001bbf3367003a543aa3099db9892134cd7
github	www.github.com/etcd-io/etcd/commit/6643f80602461a6095c9b294b6512fd9719bef41
github	www.github.com/etcd-io/etcd/commit/7cf71ec9e2ec54230a5454392fa4ffd4574b41ed
github	www.github.com/etcd-io/etcd/releases/tag/v3.5.33
github	www.github.com/etcd-io/etcd/releases/tag/v3.7.1
github	www.github.com/etcd-io/etcd/releases/tag/v3.6.14

Parameter	Position	Path	Description	CWE
WithFromKey()	path	server/etcdserver/api/v3rpc/watch.go	RBAC permission check is performed after rewriting an open-ended RangeEnd sentinel, causing a read-permission on a single key to be exploited to receive watch events for keys >= that key (unauthorized broad access).	CWE-863
RangeEnd	path	server/etcdserver/api/v3rpc/watch.go	RBAC permission check is performed after rewriting an open-ended RangeEnd sentinel, causing a read-permission on a single key to be exploited to receive watch events for keys >= that key (unauthorized broad access).	CWE-863
watch request	path	server/etcdserver/api/v3rpc/watch.go	RBAC permission check is performed after rewriting an open-ended RangeEnd sentinel, causing a read-permission on a single key to be exploited to receive watch events for keys >= that key (unauthorized broad access).	CWE-863

18 Sep 2026 20:05Current

5.3Medium risk

Vulners AI Score5.3

CVSS 47.1

EPSS0.00365

SSVC

CWE-863