{"id":"UBUNTU-CVE-2026-19012","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":"2026-08-13T00:02:19Z","published":"2026-08-07T20:16:00Z","upstream":["CVE-2026-19012"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-19012"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-19012"},{"type":"REPORT","url":"https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629"}],"affected":[{"package":{"name":"consul","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/consul?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.4~dfsg-3"],"ecosystem_specific":{"binaries":[{"binary_name":"consul","binary_version":"0.6.4~dfsg-3"},{"binary_name":"golang-github-hashicorp-consul-dev","binary_version":"0.6.4~dfsg-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19012.json"}},{"package":{"name":"consul","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/consul?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["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_name":"consul","binary_version":"1.5.2+dfsg2-14"},{"binary_name":"golang-github-hashicorp-consul-dev","binary_version":"1.5.2+dfsg2-14"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19012.json"}},{"package":{"name":"consul","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/consul?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.4+dfsg1-1","1.8.7+dfsg1-3"],"ecosystem_specific":{"binaries":[{"binary_name":"consul","binary_version":"1.8.7+dfsg1-3"},{"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"}}],"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"},{"type":"Ubuntu","score":"medium"}]}