Keycloak phishing attack via email verification step in first login flow
There is a flaw with the first login flow where, during a IdP login, an attacker with a registered account can initiate the process to merge accounts with an existing victim's account. The attacker will subsequently be prompted to "review profile" information, which allows the the attacker to modify their email address to that of a victim's account. This triggers a verification email sent to the victim's email address. If the victim clicks the verification link, the attacker can gain access to the victim's account. While not a zero-interaction attack, the attacker's email address is not directly present in the verification email content, making it a potential phishing opportunity.
This issue has been fixed in versions 26.0.13, 26.2.6, and 26.3.0.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | org.keycloak:keycloak-services | < 26.0.13, >= 26.2.0, < 26.2.6 | 26.0.13, 26.2.6 |
Referencias
- https://github.com/keycloak/keycloak/security/advisories/GHSA-xhpr-465j-7p9q
- https://nvd.nist.gov/vuln/detail/CVE-2025-7365
- https://github.com/keycloak/keycloak/issues/40446
- https://github.com/keycloak/keycloak/pull/40520
- https://access.redhat.com/errata/RHSA-2025:11986
- https://access.redhat.com/errata/RHSA-2025:11987
- https://access.redhat.com/errata/RHSA-2025:12015
- https://access.redhat.com/errata/RHSA-2025:12016
- https://access.redhat.com/security/cve/CVE-2025-7365
- https://bugzilla.redhat.com/show_bug.cgi?id=2378852
- https://github.com/keycloak/keycloak
- https://github.com/keycloak/keycloak/releases/tag/26.0.13
- https://github.com/keycloak/keycloak/releases/tag/26.2.6
- https://github.com/keycloak/keycloak/releases/tag/26.3.0
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N- Debilidad (CWE)
CWE-346- Plataforma
- Java / Kotlin (Maven)
- Paquete
org.keycloak:keycloak-services- Publicada
- 30.07.2025
- Actualizado
- 11.10.2026 12:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-xhpr-465j-7p9q - CC BY 4.0
Historial de vulnerabilidades: org.keycloak:keycloak-services
Todas las vulnerabilidades publicadas de este paquete (Java / Kotlin (Maven)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 98
- Primera → última
- 01.2022 08.2026
- Sin corrección
- 16
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 3
- Alta 26
- Media 51
- Baja 18
Divulgaciones por año
- 2022: 9
- 2023: 9
- 2024: 17
- 2025: 11
- 2026: 52
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Keycloak phishing attack via email verification step in first login flow esta entrada
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