DEBIAN-CVE-2026-73499

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Source
https://security-tracker.debian.org/tracker/CVE-2026-73499
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73499.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-73499
Upstream
Published
2026-08-12T22:17:17Z
Modified
2026-09-19T22:47:49Z
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/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 CVSS Calculator
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/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.

References

Affected packages

Debian:12 / etcd

Package

Name
etcd
Purl
pkg:deb/debian/etcd?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.4.23-4
3.4.23-5
3.4.23-6
3.4.30-1
3.4.30-2
3.4.30-3
3.5.5-1
3.5.15-1
3.5.15-2
3.5.15-3
3.5.15-4
3.5.15-5
3.5.15-6
3.5.15-7
3.5.16-1
3.5.16-2
3.5.16-3
3.5.16-4
3.5.16-5
3.5.16-6
3.5.16-7
3.5.16-8
3.5.16-9
3.5.16-10
3.5.16-11
3.5.22-1
3.5.22-2
3.5.30-1~exp1
3.5.30-1~exp2
3.5.30-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73499.json"

Debian:13 / etcd

Package

Name
etcd
Purl
pkg:deb/debian/etcd?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.5.16-4
3.5.16-5
3.5.16-6
3.5.16-7
3.5.16-8
3.5.16-9
3.5.16-10
3.5.16-11
3.5.22-1
3.5.22-2
3.5.30-1~exp1
3.5.30-1~exp2
3.5.30-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73499.json"

Debian:14 / etcd

Package

Name
etcd
Purl
pkg:deb/debian/etcd?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.5.16-4
3.5.16-5
3.5.16-6
3.5.16-7
3.5.16-8
3.5.16-9
3.5.16-10
3.5.16-11
3.5.22-1
3.5.22-2
3.5.30-1~exp1
3.5.30-1~exp2
3.5.30-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73499.json"