CVE-2024-4540highCWE-312

Keycloak: exposure of sensitive information in pushed authorization requests (par) kc_restart cookie

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.5%

exploitation probability

0.5%top 55% of all CVEs

observed exploitation

nono source reports it

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

keycloakRed Hat · Red Hat Build of Keycloak Red Hat · Red Hat build of Keycloak 22 Red Hat · Red Hat build of Keycloak 24 Red Hat · Red Hat Single Sign-On 7 Red Hat · Red Hat Single Sign-On 7.6 for RHEL 7 Red Hat · Red Hat Single Sign-On 7.6 for RHEL 8 Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9 Red Hat · RHEL-8 based Middleware Containers

References