Advisory details:
vulnrichment / CVE-2026-37982
| Advisory ID | vulnrichment/CVE-2026-37982 |
| Aliases | |
| Summary | 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 0.0 |
| Risk | |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 6.8 | |
| ssvc | Track |
| Reference id | Reference type | URL |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-37982 | ||
| https://bugzilla.redhat.com/show_bug.cgi?id=2455329 | ||
| cpe:/a:redhat:build_keycloak:26.4::el9 | Other | https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:/a:redhat:build_keycloak:26.4::el9 |
| RHSA-2026:19596 | Advisory | https://access.redhat.com/errata/RHSA-2026:19596 |
| RHSA-2026:19597 | Advisory | https://access.redhat.com/errata/RHSA-2026:19597 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.