CVE-2026-4633
LOW3.7EPSS 0.02%Keycloak's identity-first login flow exposes user information
發布日:2026/3/23修改日:2026/4/13
描述
A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration.
受影響套件(1)
- Maven/org.keycloak:keycloak-services>= 26.5.0, < 26.6.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
參考連結(7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-4633
- PATCHhttps://github.com/keycloak/keycloak
- WEBhttps://access.redhat.com/security/cve/CVE-2026-4633
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2450247
- WEBhttps://github.com/keycloak/keycloak/commit/b137016cc6dcfd9f59b2aa2e6d73af8b0ebf7c6e
- WEBhttps://github.com/keycloak/keycloak/commit/b4558a874fa79341404ae4d2d8f240f22bfed340
- WEBhttps://github.com/keycloak/keycloak/issues/47619