GHSA-4gv3-mc9p-5wqc
Keycloak: Unauthenticated account takeover via reset-credentials flow bypass
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.keycloak:keycloak-services | >= 26.0.0, < 26.4.15 | 26.4.15 |
| Maven | org.keycloak:keycloak-services | >= 26.5.0, < 26.6.6 | 26.6.6 |
| Maven | org.keycloak:keycloak-services | >= 26.7.0, < 26.7.2 | 26.7.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2026-18963
- https://github.com/keycloak/keycloak/issues/51833
- https://github.com/keycloak/keycloak/pull/51844
- https://github.com/keycloak/keycloak/commit/dc2d4e524b4dae85aedc87ca28b9e4fa567d56c1
- https://access.redhat.com/errata/RHSA-2026:56519
- https://access.redhat.com/errata/RHSA-2026:56520
- https://access.redhat.com/errata/RHSA-2026:56523
- https://access.redhat.com/errata/RHSA-2026:56524
- https://access.redhat.com/security/cve/CVE-2026-18963
- https://bugzilla.redhat.com/show_bug.cgi?id=2511595
- https://github.com/keycloak/keycloak