{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18651","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-08-03T11:47:54.931Z","datePublished":"2026-08-03T14:55:33.426Z","dateUpdated":"2026-08-03T16:58:47.716Z"},"containers":{"cna":{"title":"389-ds-base: 389-ds-base: sasl plain bind installs connection credentials before account-lock check, allowing continued access as a locked account","metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"A flaw was found in 389 Directory Server. During SASL PLAIN authentication, the server installs connection-level bind credentials before performing the account-lock check. If the account is subsequently found to be locked, the bind is reported as failed to the client, but the already-installed authenticated state on the connection is not reverted. A client that supplies valid credentials for an account that has been administratively locked can continue to use the same connection with that account's privileges, defeating account lock as an access-revocation control."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Directory Server 11","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","defaultStatus":"affected","cpes":["cpe:/a:redhat:directory_server:11"]},{"vendor":"Red Hat","product":"Red Hat Directory Server 12","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","defaultStatus":"affected","cpes":["cpe:/a:redhat:directory_server:12"]},{"vendor":"Red Hat","product":"Red Hat Directory Server 13","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","defaultStatus":"affected","cpes":["cpe:/a:redhat:directory_server:13"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","defaultStatus":"unaffected","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds:1.4/389-ds-base","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-18651","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2510617","name":"RHBZ#2510617","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-08-03T00:00:00.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"Improper Authentication","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-287: Improper Authentication","workarounds":[{"lang":"en","value":"When locking an account, also rotate its LDAP password. Locking the account alone is not enough: this flaw lets a bind with the account's still-valid password succeed even after it's locked."}],"timeline":[{"lang":"en","time":"2026-07-30T10:05:06.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-08-03T00:00:00.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank Andrew Rukin (Arenadata) and Chris Jarrett-Davies (OpenAI Security Research) for reporting this issue."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-08-03T14:55:33.426Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-03T16:58:38.923285Z","id":"CVE-2026-18651","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-03T16:58:47.716Z"}}]}}