{"id":"CVE-2026-19012","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.","modified":"2026-08-14T04:03:46.738977237Z","published":"2026-08-07T19:18:59.119Z","related":["CGA-r842-5hmw-gm2p"],"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"},"references":[{"type":"WEB","url":"https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19012.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19012"},{"type":"PACKAGE","url":"https://github.com/hashicorp/consul"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hashicorp/consul","events":[{"introduced":"349cec176db1a6067952c1708d384e56de4eb9e1"},{"fixed":"d0f2be936dced184d8bddc6f9dd00295f7c34f74"}],"database_specific":{"extracted_events":[{"introduced":"1.18.0"},{"fixed":"2.0.3"}],"source":"AFFECTED_FIELD"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19012.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}