{"id":"CVE-2024-4540","published":"2024-06-03T15:33:18Z","modified":"2026-10-09T16:43:28Z","title":"Keycloak: exposure of sensitive information in pushed authorization requests (par) kc_restart cookie","vendor":"Red Hat","product":"Red Hat Build of Keycloak","tier":"tail","description":{"text":"A flaw was found in Keycloak in OAuth 2.0 Pushed Authorization Requests (PAR). Client-provided parameters were found to be included in plain text in the KC_RESTART cookie returned by the authorization server's HTTP response to a `request_uri` authorization request, possibly leading to an information disclosure vulnerability.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00551,"percentile":0.45961,"provenance":"source"},"cwes":[{"id":"CWE-312","name":"Cleartext Storage of Sensitive Information"}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2024:3566","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:3567","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:3568","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:3570","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:3572","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:3573","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:3574","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:3575","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:3576","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2024-4540","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2279303","tags":["issue-tracking","x_refsource_REDHAT"]}],"priority":{"score":14.4,"factors":[{"name":"EPSS percentile","points":9.19},{"name":"CVSS severity","points":5.25}]},"vendorSlug":"red-hat","affectedVersions":[{"vendor":"Red Hat","product":"Red Hat build of Keycloak 22","versions":["all versions"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 22","versions":["all versions"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 22","versions":["all versions"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 24","versions":["all versions"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 24","versions":["all versions"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 24","versions":["all versions"]},{"vendor":"Red Hat","product":"Red Hat Single Sign-On 7.6 for RHEL 7","versions":["all versions"]},{"vendor":"Red Hat","product":"Red Hat Single Sign-On 7.6 for RHEL 8","versions":["all versions"]},{"vendor":"Red Hat","product":"Red Hat Single Sign-On 7.6 for RHEL 9","versions":["all versions"]},{"vendor":"Red Hat","product":"RHEL-8 based Middleware Containers","versions":["all versions"]}],"affected":[{"ecosystem":"Maven","package":"org.keycloak:keycloak-services","vulnerableRanges":["<24.0.5"],"patched":["24.0.5"],"from":["GHSA-69fp-7c8p-crjr"],"provenance":"source"}],"euvd":{"id":"EUVD-2024-1945","exploited":false,"provenance":"source"},"lineage":{"packageHistory":[{"cve":"CVE-2024-1249","published":"2024-04-17","fixed":"24.0.3","kev":false},{"cve":"CVE-2024-2419","published":"2024-04-17","fixed":"24.0.3","kev":false},{"cve":"CVE-2024-3656","published":"2024-10-09","fixed":"24.0.5","kev":false},{"cve":"CVE-2024-4540","published":"2024-06-03","fixed":"24.0.5","kev":false},{"cve":"CVE-2024-4629","published":"2024-09-03","fixed":"25.0.4","kev":false,"link":{"from":"CVE-2024-4540","to":"CVE-2024-4629","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.keycloak:keycloak-services","fromFixed":"24.0.5","toFixed":"24.0.7","daysApart":92}]}},{"cve":"CVE-2024-7341","published":"2024-09-09","fixed":"25.0.5","kev":false,"link":{"from":"CVE-2024-4540","to":"CVE-2024-7341","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.keycloak:keycloak-services","fromFixed":"24.0.5","toFixed":"24.0.7","daysApart":98}]}},{"cve":"CVE-2024-8883","published":"2024-09-19","fixed":"25.0.6","kev":false}],"package":"Maven:org.keycloak:keycloak-services"}}