UBUNTU-CVE-2026-73499
- Source
- https://ubuntu.com/security/CVE-2026-73499
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73499.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-73499
- Upstream
- Published
- 2026-08-13T00:00:00Z
- Modified
- 2026-08-13T19:31:08.551916740Z
- Severity
-
- 7.1 (High) CVSS_V4 - 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 CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
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/rangepermcache.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.
- References
-
- https://ubuntu.com/security/CVE-2026-73499
- https://www.cve.org/CVERecord?id=CVE-2026-73499
- https://github.com/etcd-io/etcd/security/advisories/GHSA-xg4h-6gfc-h4m8
- https://github.com/etcd-io/etcd/commit/6643f80602461a6095c9b294b6512fd9719bef41
- https://github.com/etcd-io/etcd/commit/7cf71ec9e2ec54230a5454392fa4ffd4574b41ed
- https://github.com/etcd-io/etcd/commit/afeaa624da19085b47fb5ccc7c22a8c421bc2eae
- https://github.com/etcd-io/etcd/commit/e863b001bbf3367003a543aa3099db9892134cd7
- https://github.com/etcd-io/etcd/releases/tag/v3.5.33
- https://github.com/etcd-io/etcd/releases/tag/v3.6.14
- https://github.com/etcd-io/etcd/releases/tag/v3.7.1
Affected packages
Ubuntu:16.04:LTS
etcd
Package
- Name
- etcd
- Purl
- pkg:deb/ubuntu/etcd?arch=source&distro=xenial
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
2.*
2.2.0+dfsg-2
2.2.1+dfsg-1
2.2.2+dfsg-1
2.2.2+dfsg-2
2.2.3+dfsg-1
2.2.5+dfsg-1
2.2.5+dfsg-1ubuntu1
Ubuntu:Pro:18.04:LTS
etcd
Package
- Name
- etcd
- Purl
- pkg:deb/ubuntu/etcd?arch=source&distro=esm-apps%2Fbionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
3.*
3.1.0-1
3.2.9+dfsg-2
3.2.9+dfsg-3
3.2.17+dfsg-1
3.2.17+dfsg-1ubuntu0.1~esm1
3.2.17+dfsg-1ubuntu0.1
3.2.17+dfsg-1ubuntu0.1+esm1
3.2.17+dfsg-1ubuntu0.1+esm2
Ecosystem specific
{
"binaries": [
{
"binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2",
"binary_name": "etcd"
},
{
"binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2",
"binary_name": "etcd-client"
},
{
"binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2",
"binary_name": "etcd-server"
},
{
"binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2",
"binary_name": "golang-etcd-server-dev"
}
]
}Ubuntu:Pro:20.04:LTS
etcd
Package
- Name
- etcd
- Purl
- pkg:deb/ubuntu/etcd?arch=source&distro=esm-apps%2Ffocal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
3.*
3.2.26+dfsg-3
3.2.26+dfsg-4
3.2.26+dfsg-6
3.2.26+dfsg-6ubuntu0.1
3.2.26+dfsg-6ubuntu0.2
3.2.26+dfsg-6ubuntu0.2+esm1
Ecosystem specific
{
"binaries": [
{
"binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1",
"binary_name": "etcd"
},
{
"binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1",
"binary_name": "etcd-client"
},
{
"binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1",
"binary_name": "etcd-server"
},
{
"binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1",
"binary_name": "golang-etcd-server-dev"
}
]
}Ubuntu:Pro:22.04:LTS
etcd
Package
- Name
- etcd
- Purl
- pkg:deb/ubuntu/etcd?arch=source&distro=esm-apps%2Fjammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
3.*
3.3.25+dfsg-6
3.3.25+dfsg-7
3.3.25+dfsg-7ubuntu0.22.04.1
3.3.25+dfsg-7ubuntu0.22.04.1+esm1
3.3.25+dfsg-7ubuntu0.22.04.2
3.3.25+dfsg-7ubuntu0.22.04.2+esm1
3.3.25+dfsg-7ubuntu0.22.04.2+esm2
3.3.25+dfsg-7ubuntu0.22.04.2+esm3
Ecosystem specific
{
"binaries": [
{
"binary_version": "3.3.25+dfsg-7ubuntu0.22.04.2+esm3",
"binary_name": "etcd"
},
{
"binary_version": "3.3.25+dfsg-7ubuntu0.22.04.2+esm3",
"binary_name": "etcd-client"
},
{
"binary_version": "3.3.25+dfsg-7ubuntu0.22.04.2+esm3",
"binary_name": "etcd-server"
},
{
"binary_version": "3.3.25+dfsg-7ubuntu0.22.04.2+esm3",
"binary_name": "golang-etcd-server-dev"
}
]
}Ubuntu:Pro:24.04:LTS
etcd
Package
- Name
- etcd
- Purl
- pkg:deb/ubuntu/etcd?arch=source&distro=esm-apps%2Fnoble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
3.*
3.4.23-4ubuntu2
3.4.30-1
3.4.30-1build1
3.4.30-1ubuntu0.24.04.1
3.4.30-1ubuntu0.24.04.2
3.4.30-1ubuntu0.24.04.2+esm1
3.4.30-1ubuntu0.24.04.3
3.4.30-1ubuntu0.24.04.3+esm1
3.4.30-1ubuntu0.24.04.3+esm2
Ecosystem specific
{
"binaries": [
{
"binary_version": "3.4.30-1ubuntu0.24.04.3+esm2",
"binary_name": "etcd-client"
},
{
"binary_version": "3.4.30-1ubuntu0.24.04.3+esm2",
"binary_name": "etcd-server"
},
{
"binary_version": "3.4.30-1ubuntu0.24.04.3+esm2",
"binary_name": "golang-etcd-server-dev"
}
]
}Ubuntu:Pro:26.04:LTS
etcd
Package
- Name
- etcd
- Purl
- pkg:deb/ubuntu/etcd?arch=source&distro=esm-apps%2Fresolute
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Ecosystem specific
{
"binaries": [
{
"binary_version": "3.5.16-10ubuntu0.26.04.1~esm1",
"binary_name": "etcd-client"
},
{
"binary_version": "3.5.16-10ubuntu0.26.04.1~esm1",
"binary_name": "etcd-server"
},
{
"binary_version": "3.5.16-10ubuntu0.26.04.1~esm1",
"binary_name": "golang-etcd-server-dev"
}
]
}