{"schemaVersion":3,"id":"CVE-2026-19015","aliases":["UBUNTU-CVE-2026-19015","DEBIAN-CVE-2026-19015","CGA-4hcv-g4wp-27qg","CGA-568q-f79q-7cgf","CGA-79m2-73mh-5hg2","CGA-8h3q-c264-f2v9","CGA-cc5x-6qpg-rxm6","CGA-g79q-7qfq-rh4f","CGA-jqq6-q9jh-mj29"],"status":"published","duplicateOf":null,"title":null,"description":"Consul Community Edition and Consul Enterprise 1.2.0 through 2.0.2 are vulnerable to an uncontrolled resource consumption issue in the Connect CA roots endpoint that may allow a remote caller to grow the agent's Connect CA roots cache without bound, defeating the operator's cache-disable configuration. This vulnerability, CVE-2026-19015, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.","dates":{"published":"2026-08-07T19:19:11.407Z","modified":"2026-08-10T18:24:29.065Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.3,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":10,"impact":2.3,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":10,"impact":2.3,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Chainguard","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":10,"impact":2.3,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00402,"percentile":0.33287,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.10900000000000003,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00293},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00402,"percentile":0.33287}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00293,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00402,"percentile":0.33287}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling","description":"The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/770.html"}],"affected":[{"vendor":"chainguard","product":"consul-1.22","name":"consul-1.22","label":"consul-1.22","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/consul-1.22","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"consul-2.0","name":"consul-2.0","label":"consul-2.0","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/consul-2.0","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"consul-fips-1.22","name":"consul-fips-1.22","label":"consul-fips-1.22","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/consul-fips-1.22","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"consul-fips-2.0","name":"consul-fips-2.0","label":"consul-fips-2.0","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/consul-fips-2.0","purlType":"apk","versions":[{"text":"< 2.0.3-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.0.3-r0","eol":null,"hubHref":null},{"vendor":"debian","product":"consul","name":"consul","label":"consul","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/consul","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"consul","name":"consul","label":"consul","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/consul","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"hashicorp","product":"consul","name":"consul","label":"consul","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.2.0, < 2.0.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.2.0, < 2.0.3","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"consul","label":"Hashicorp Consul","category":"server-app"}},"hubHref":"/vendor/hashicorp/consul"},{"vendor":"hashicorp","product":"consul enterprise","name":"Consul Enterprise","label":"consul enterprise","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.2.0, < 2.0.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.2.0, < 2.0.3","eol":null,"hubHref":"/vendor/hashicorp/consul_enterprise"}],"affectedCount":8,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629","label":"discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629","hostname":"discuss.hashicorp.com","tags":["REPORT","WEB"]},{"url":"https://ubuntu.com/security/CVE-2026-19015","label":"ubuntu.com/security/CVE-2026-19015","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-19015","label":"www.cve.org/CVERecord?id=CVE-2026-19015","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-19015","label":"security-tracker.debian.org/tracker/CVE-2026-19015","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19015.json","label":"github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19015.json","hostname":"github.com","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19015","label":"nvd.nist.gov/vuln/detail/CVE-2026-19015","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/hashicorp/consul","label":"github.com/hashicorp/consul","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CGA-554C-R8PF-5M79"]},"timeline":[{"kind":"published","date":"2026-08-07T19:19:11.407Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-10T18:24:29.065Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":21,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T20:08:49.524Z","stale":false,"partial":false}}