{"schemaVersion":3,"id":"CVE-2026-76578","aliases":["UBUNTU-CVE-2026-76578","DEBIAN-CVE-2026-76578"],"status":"published","duplicateOf":null,"title":null,"description":"A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the underlying directory server's ACI evaluation (tracked separately), to create an arbitrary attacker-controlled Kerberos principal and have it added to the administrators group. This allows a remote, unauthenticated attacker to obtain genuine FreeIPA administrator-group membership and perform administrative operations against the directory and, on SID-enabled deployments, other IdM services.","dates":{"published":"2026-09-07T12:01:36.194Z","modified":"2026-10-15T05:08:10.868Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01206,"percentile":0.68045,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.7529999999999999,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00453},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00959,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00963,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00963,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00963,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.01206,"percentile":0.68045}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00453,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00959,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00963,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00963,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00963,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00974,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01206,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.01206,"percentile":0.68045}]},"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-306","name":"Missing Authentication for Critical Function","description":"The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/306.html"}],"affected":[{"vendor":"debian","product":"freeipa","name":"freeipa","label":"freeipa","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/freeipa","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"freeipa","name":"freeipa","label":"freeipa","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/freeipa","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:70564","label":"access.redhat.com/errata/RHSA-2026:70564","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:72279","label":"access.redhat.com/errata/RHSA-2026:72279","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-76578","label":"access.redhat.com/security/cve/CVE-2026-76578","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2519522","label":"bugzilla.redhat.com/show_bug.cgi?id=2519522","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT","REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-76578","label":"ubuntu.com/security/CVE-2026-76578","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-76578","label":"www.cve.org/CVERecord?id=CVE-2026-76578","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-76578","label":"security-tracker.debian.org/tracker/CVE-2026-76578","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:82935","label":"access.redhat.com/errata/RHSA-2026:82935","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:83083","label":"access.redhat.com/errata/RHSA-2026:83083","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:83085","label":"access.redhat.com/errata/RHSA-2026:83085","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:83084","label":"access.redhat.com/errata/RHSA-2026:83084","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:83460","label":"access.redhat.com/errata/RHSA-2026:83460","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:83461","label":"access.redhat.com/errata/RHSA-2026:83461","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]}],"lineage":{"upstream":[],"downstream":["RHSA-2026:70564","RHSA-2026:72279","RHSA-2026:82935","RHSA-2026:83083","RHSA-2026:83084","RHSA-2026:83085","RHSA-2026:83460","RHSA-2026:83461"],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-09-07T12:01:36.194Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-15T05:08:10.868Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T16:00:53.989Z","stale":false,"partial":false}}