CVE-2026-3872
HIGH7.3EPSS 0.01%Keycloak: Redirect URI validation bypass via ..;/ path traversal in OIDC auth endpoint
發布日:2026/4/2修改日:2026/4/4
描述
A flaw was found in Keycloak. This issue allows an attacker, who controls another path on the same web server, to bypass the allowed path in redirect Uniform Resource Identifiers (URIs) that use a wildcard. A successful attack may lead to the theft of an access token, resulting in information disclosure.
受影響套件(1)
- Maven/org.keycloak:keycloak-servicesfrom 0, < 26.5.7
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
參考連結(10)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-3872
- PATCHhttps://github.com/keycloak/keycloak
- WEBhttps://access.redhat.com/errata/RHSA-2026:6475
- WEBhttps://access.redhat.com/errata/RHSA-2026:6476
- WEBhttps://access.redhat.com/errata/RHSA-2026:6477
- WEBhttps://access.redhat.com/errata/RHSA-2026:6478
- WEBhttps://access.redhat.com/security/cve/CVE-2026-3872
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2445988
- WEBhttps://github.com/keycloak/keycloak/commit/35a71b00bc856ac402711130f60190d3a24795e7
- WEBhttps://github.com/keycloak/keycloak/issues/47718