UBUNTU-CVE-2026-59818

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-59818
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59818.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-59818
Upstream
Published
2026-07-08T21:16:00Z
Modified
2026-07-15T19:47:05Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the gRPC listener, allowing a client with a revoked certificate to authenticate successfully over gRPC. This issue is fixed in versions 3.5.32 and 3.6.13.

References

Affected packages

Ubuntu:16.04:LTS
etcd

Package

Name
etcd
Purl
pkg:deb/ubuntu/etcd?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "etcd",
            "binary_version":  "2.2.5+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "golang-etcd-server-dev",
            "binary_version":  "2.2.5+dfsg-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59818.json"
Ubuntu:25.10
etcd

Package

Name
etcd
Purl
pkg:deb/ubuntu/etcd?arch=source&distro=questing

Affected ranges

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

Affected versions

3.*
3.5.16-4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "etcd-client",
            "binary_version":  "3.5.16-4"
        },
        {
            "binary_name":  "etcd-server",
            "binary_version":  "3.5.16-4"
        },
        {
            "binary_name":  "golang-etcd-server-dev",
            "binary_version":  "3.5.16-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59818.json"
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
Introduced
0 Unknown 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_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",
            "binary_version":  "3.2.17+dfsg-1ubuntu0.1+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59818.json"
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
Introduced
0 Unknown 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_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",
            "binary_version":  "3.2.26+dfsg-6ubuntu0.2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59818.json"
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
Introduced
0 Unknown 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_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",
            "binary_version":  "3.3.25+dfsg-7ubuntu0.22.04.2+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59818.json"
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
Introduced
0 Unknown 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_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",
            "binary_version":  "3.4.30-1ubuntu0.24.04.3+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59818.json"
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
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.5.16-4
3.5.16-10
3.5.16-10ubuntu0.26.04.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "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",
            "binary_version":  "3.5.16-10ubuntu0.26.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59818.json"