CVSS 3.0
5.5 mediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2019-10157
It was found that Keycloak's Node.js adapter before version 4.8.3 did not properly verify the web token received from the server in its backchannel logout . An attacker with local access could use this to construct a malicious web token setting an NBF parameter that could prevent user access indefinitely.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-287, CWE-345
- Published
- Modified
- Record from
- the NVD, synced
Affected
- redhat:keycloak
- redhat:single_sign-on
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-68hw-vfh7-xvg8 | npm | keycloak-connect | <4.8.3 | 4.8.3 |