{"id":"CVE-2024-1722","state":"PUBLISHED","title":"Keycloak-core: dos via account lockout","description":"A flaw was found in Keycloak. In certain conditions, this issue may allow a remote unauthenticated attacker to block other accounts from logging in.","publishedAt":"2024-02-27T17:39:13.261Z","updatedAt":"2025-11-21T06:27:40.399Z","severity":{"score":3.7,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"redhat"},"assigner":"redhat","products":["keycloak-core","Red Hat Red Hat Build of Keycloak","Red Hat Red Hat Single Sign-On 7"],"affected":[{"packageName":"keycloak-core","defaultStatus":"unaffected","versions":[{"version":"4.15.0","status":"affected"}],"collectionURL":"https://bitbucket.org/b_c/jose4j/src/master/"},{"vendor":"Red Hat","product":"Red Hat Build of Keycloak","packageName":"keycloak-core","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:"]},{"vendor":"Red Hat","product":"Red Hat Single Sign-On 7","packageName":"rh-sso7-keycloak","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:red_hat_single_sign_on:7"]}],"references":["https://access.redhat.com/security/cve/CVE-2024-1722","https://bugzilla.redhat.com/show_bug.cgi?id=2265389"],"weaknesses":["CWE-645"],"ingestedAt":"2026-10-29T20:06:59.846Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/1xxx/CVE-2024-1722.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-1722","state":"PUBLISHED","datePublished":"2024-02-27T17:39:13.261Z","dateUpdated":"2025-11-21T06:27:40.399Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2024-02-21T19:39:16.206Z"},"containers":{"cna":{"title":"Keycloak-core: dos via account lockout","descriptions":[{"lang":"en","value":"A flaw was found in Keycloak. In certain conditions, this issue may allow a remote unauthenticated attacker to block other accounts from logging in."}],"affected":[{"packageName":"keycloak-core","defaultStatus":"unaffected","versions":[{"version":"4.15.0","status":"affected"}],"collectionURL":"https://bitbucket.org/b_c/jose4j/src/master/"},{"vendor":"Red Hat","product":"Red Hat Build of Keycloak","packageName":"keycloak-core","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:"]},{"vendor":"Red Hat","product":"Red Hat Single Sign-On 7","packageName":"rh-sso7-keycloak","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:red_hat_single_sign_on:7"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2024-1722","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2265389","name":"RHBZ#2265389","tags":["issue-tracking","x_refsource_REDHAT"]}],"metrics":[{"other":{"content":{"value":"Low","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-645","description":"Overly Restrictive Account Lockout Mechanism","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2025-11-21T06:27:40.399Z"},"datePublic":"2024-02-21T00:00:00.000Z","x_redhatCweChain":"CWE-645: Overly Restrictive Account Lockout Mechanism","workarounds":[{"lang":"en","value":"Red Hat Product Security is not aware of a way to completely mitigate this issue. However, the following techniques can be used to help prevent exploitation:\n- Put limits on frequency of account registration, restricting how often an attacker could utilize this attack \n- Restrict new account registration to not allow email addresses in the username field, for example, by not allowing the \"@\" symbol. Note: this cannot prevent attacks against existing users who have registered with an email address.\n\nIf this vulnerability has been triggered, an administrator has two options to remedy it manually by modifying the second account (of the attacker):\n- Delete the account\n- Change the username"}],"timeline":[{"lang":"en","time":"2024-02-12T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2024-02-21T00:00:00.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank Maor Abutbul (CyberArk) for reporting this issue."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-1722","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-02-29T20:52:47.119910Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-07-05T17:22:05.586Z"}},{"title":"CVE Program Container","references":[{"url":"https://access.redhat.com/security/cve/CVE-2024-1722","tags":["vdb-entry","x_refsource_REDHAT","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2265389","name":"RHBZ#2265389","tags":["issue-tracking","x_refsource_REDHAT","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-01T18:48:21.816Z"}}]}}}