{"cve":"CVE-2024-4540","nvd":{"published":"2024-06-03T16:15:08.993","modified":"2026-10-09T17:16:39.943","status":"Deferred","description":"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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-312"],"references":["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"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:51:20.603330631+00:00"},"epss":{"cve":"CVE-2024-4540","score":0.00551,"percentile":0.45809,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-69fp-7c8p-crjr","url":"https://osv.dev/vulnerability/GHSA-69fp-7c8p-crjr","summary":"Keycloak exposes sensitive information in Pushed Authorization Requests (PAR)","modified":"2026-08-07T08:12:15.305426269Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","ranges":["<24.0.5"],"fixed":["24.0.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}