CVE-2026-37982
6.8 MEDIUMA flaw was found in Keycloak
Published: 2026-05-19 · Last updated: 2026-06-03
Severity and scoring
- CVSS
- 6.8 MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- CWE
- CWE-294
Affected products
| Vendor | Product |
|---|---|
| redhat | build_of_keycloak |
Description
A flaw was found in Keycloak. This authentication vulnerability allows a remote attacker to replay `ExecuteActionsActionToken` tokens within Keycloak's WebAuthn (Web Authentication) flow. By intercepting an execute-actions email link, an attacker can register their own authenticator to a victim's account. This leads to unauthorized enrollment of a hardware-backed credential, enabling persistent account takeover.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-37982
- [Vendor advisory]https://access.redhat.com/errata/RHSA-2026:19596
- [Vendor advisory]https://access.redhat.com/errata/RHSA-2026:19597
- [Vendor advisory]https://access.redhat.com/security/cve/CVE-2026-37982
- [Vendor advisory]https://bugzilla.redhat.com/show_bug.cgi?id=2455329
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