CVE-2026-19012

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Source
https://cve.org/CVERecord?id=CVE-2026-19012
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19012.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-19012
Aliases
Downstream
CGA (7)
DEBIAN (1)
MINI (2)
UBUNTU (1)
Published
2026-08-07T19:18:59Z
Modified
2026-10-28T02:30:29Z
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
Summary
Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path
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.

Database specific 
{
    "cna_assigner":  "HashiCorp",
    "cwe_ids":  [
        "CWE-476"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19012.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "1.18.0"
                        },
                        {
                            "fixed":  "1.21.17"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "ChangesAt"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/hashicorp/consul

Affected ranges

Type
GIT
Repo
https://github.com/hashicorp/consul
Events
Introduced
349cec176db1a6067952c1708d384e56de4eb9e1
Fixed
d0f2be936dced184d8bddc6f9dd00295f7c34f74
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "1.18.0"
                },
                {
                    "fixed":  "2.0.3"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19012.json"