{"id":"CVE-2026-105626","title":"Consul vulnerable to a denial of service in HTTP APIs","summary":"HashiCorp Consul and Consul Enterprise are vulnerable to a denial of service in the HTTP API that may allow an unauthenticated attacker to exhaust memory on a Consul agent. This vulnerability (CVE-2026-105626) is fixed in Consul Communit…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-770"],"vendor":"HashiCorp","product":"Consul","affected":["Consul >= 0.6.0 < 2.1.0","consul_enterprise >= 0.6.0 < 2.1.0"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-26T18:59:37.651193Z"},"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T19:38:29.471Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105626","references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-48-consul-vulnerable-to-a-denial-of-service-in-http-apis/77913"}],"tags":["cve.org"],"ingestedAt":"2026-10-26T18:35:51.508Z","epss":0.0043,"epssPercentile":0.37016,"slug":"CVE-2026-105626","body":"## Overview\n\nHashiCorp Consul and Consul Enterprise are vulnerable to a denial of service in the HTTP API that may allow an unauthenticated attacker to exhaust memory on a Consul agent. This vulnerability (CVE-2026-105626) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19.\n\n## Affected\n\n- `Consul >= 0.6.0 < 2.1.0`\n- `consul_enterprise >= 0.6.0 < 2.1.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}