{"cve":"CVE-2025-10044","nvd":{"published":"2025-09-05T20:15:34.430","modified":"2026-10-18T21:10:00.120","status":"Deferred","description":"A flaw was found in Keycloak. Keycloak’s account console and other pages accept arbitrary text in the error_description query parameter. This text is directly rendered in error pages without validation or sanitization. While HTML encoding prevents XSS, an attacker can craft URLs with misleading messages (e.g., fake support phone numbers or URLs), which are displayed within the trusted Keycloak UI. This creates a phishing vector, potentially tricking users into contacting malicious actors.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-79"],"references":["https://access.redhat.com/errata/RHSA-2025:16399","https://access.redhat.com/errata/RHSA-2025:16400","https://access.redhat.com/errata/RHSA-2025:19923","https://access.redhat.com/errata/RHSA-2025:19925","https://access.redhat.com/security/cve/CVE-2025-10044"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2025-10044","score":0.00312,"percentile":0.23807,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-27gc-wj6x-9w55","url":"https://osv.dev/vulnerability/GHSA-27gc-wj6x-9w55","summary":"Keycloak error_description injection on error pages that can trigger phishing attacks","modified":"2025-10-17T18:42:44.372189Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-account-ui","purl":"pkg:maven/org.keycloak/keycloak-account-ui","ranges":["<26.2.9"],"fixed":["26.2.9"]},{"ecosystem":"Maven","name":"org.keycloak:keycloak-account-ui","purl":"pkg:maven/org.keycloak/keycloak-account-ui","ranges":[">=26.3.0 <26.3.4"],"fixed":["26.3.4"]},{"ecosystem":"Maven","name":"org.keycloak:keycloak-admin-ui","purl":"pkg:maven/org.keycloak/keycloak-admin-ui","ranges":["<26.2.9"],"fixed":["26.2.9"]},{"ecosystem":"Maven","name":"org.keycloak:keycloak-admin-ui","purl":"pkg:maven/org.keycloak/keycloak-admin-ui","ranges":[">=26.3.0 <26.3.4"],"fixed":["26.3.4"]}]}],"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."]}