CVE-2026-1529
HIGH8.1EPSS 0.01%Keycloak affected by improper invitation token validation
發布日:2026/2/9修改日:2026/2/13
描述
A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attacker to successfully self-register into an unauthorized organization, leading to unauthorized access.
受影響套件(1)
- Maven/org.keycloak:keycloak-services>= 26.5.0, < 26.5.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
參考連結(13)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-1529
- PATCHhttps://github.com/keycloak/keycloak
- WEBhttps://access.redhat.com/errata/RHSA-2026:2363
- WEBhttps://access.redhat.com/errata/RHSA-2026:2364
- WEBhttps://access.redhat.com/errata/RHSA-2026:2365
- WEBhttps://access.redhat.com/errata/RHSA-2026:2366
- WEBhttps://access.redhat.com/security/cve/CVE-2026-1529
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2433783
- WEBhttps://github.com/keycloak/keycloak/commit/82cd7941d1dd28fa14a67a6e6b912301f1a5e1a1
- WEBhttps://github.com/keycloak/keycloak/commit/8fc9a98026106a326f4faa98d4c9a48341ace2d7
- WEBhttps://github.com/keycloak/keycloak/commit/b2519756487b519f95c07aa8b10afe003e492119
- WEBhttps://github.com/keycloak/keycloak/issues/46145
- WEBhttps://github.com/keycloak/keycloak/pull/46155