CVE-2026-18963
The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 3.18% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-640
- Source
- secalert@redhat.com
References
- 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://cert-portal.siemens.com/productcert/html/ssa-503852.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.