UBUNTU-CVE-2026-19012

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Source
https://ubuntu.com/security/CVE-2026-19012
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19012.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-19012
Upstream
Published
2026-08-11T00:00:00Z
Modified
2026-08-12T04:30:05.064769906Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a service-router configuration entry that causes the agent to exit unexpectedly. This vulnerability, CVE-2026-19012, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

References

Affected packages

Ubuntu:18.04:LTS / consul

Package

Name
consul
Purl
pkg:deb/ubuntu/consul?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*
0.6.4~dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.6.4~dfsg-3",
            "binary_name": "consul"
        },
        {
            "binary_version": "0.6.4~dfsg-3",
            "binary_name": "golang-github-hashicorp-consul-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19012.json"

Ubuntu:20.04:LTS / consul

Package

Name
consul
Purl
pkg:deb/ubuntu/consul?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.0.7~dfsg1-5ubuntu1
1.4.4~dfsg1-2ubuntu2
1.5.2+dfsg1-6
1.5.2+dfsg1-10
1.5.2+dfsg1-12
1.5.2+dfsg2-14

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.5.2+dfsg2-14",
            "binary_name": "consul"
        },
        {
            "binary_version": "1.5.2+dfsg2-14",
            "binary_name": "golang-github-hashicorp-consul-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19012.json"

Ubuntu:22.04:LTS / consul

Package

Name
consul
Purl
pkg:deb/ubuntu/consul?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.7.4+dfsg1-1
1.8.7+dfsg1-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.8.7+dfsg1-3",
            "binary_name": "consul"
        },
        {
            "binary_version": "1.8.7+dfsg1-3",
            "binary_name": "golang-github-hashicorp-consul-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19012.json"