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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 7.5NVD modified 2026-10-09 17:16
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 22
- https://access.redhat.com/errata/RHSA-2024:3566
- https://access.redhat.com/errata/RHSA-2024:3567
- https://access.redhat.com/errata/RHSA-2024:3568
- https://access.redhat.com/errata/RHSA-2024:3570
- https://access.redhat.com/errata/RHSA-2024:3572
- https://access.redhat.com/errata/RHSA-2024:3573
- https://access.redhat.com/errata/RHSA-2024:3574
- https://access.redhat.com/errata/RHSA-2024:3575
- https://access.redhat.com/errata/RHSA-2024:3576
- https://access.redhat.com/security/cve/CVE-2024-4540
- https://bugzilla.redhat.com/show_bug.cgi?id=2279303
- https://access.redhat.com/errata/RHSA-2024:3566
- https://access.redhat.com/errata/RHSA-2024:3567
- https://access.redhat.com/errata/RHSA-2024:3568
- https://access.redhat.com/errata/RHSA-2024:3570
- https://access.redhat.com/errata/RHSA-2024:3572
- https://access.redhat.com/errata/RHSA-2024:3573
- https://access.redhat.com/errata/RHSA-2024:3574
- https://access.redhat.com/errata/RHSA-2024:3575
- https://access.redhat.com/errata/RHSA-2024:3576
- https://access.redhat.com/security/cve/CVE-2024-4540
- https://bugzilla.redhat.com/show_bug.cgi?id=2279303