Advisory details:
github_osv / GHSA-w4p5-rfh6-cwrv
| Advisory ID | github_osv/GHSA-w4p5-rfh6-cwrv |
| Aliases |
CVE-2026-37982
|
| Summary | Keycloak: Unauthorized account takeover via WebAuthn token replay 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 | 6.1 |
| Risk | 3.0 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 6.8 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-w4p5-rfh6-cwrv/GHSA-w4p5-rfh6-cwrv.json |
| generic_textual | MODERATE |
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 |
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-19T13:37:29Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/37xxx/CVE-2026-37982.json
Source Advisory: vulnrichment/CVE-2026-37982
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]