CVE-2023-0657
Keycloak vulnerable to impersonation via logout token exchange
3.4
LOW
CVSS 3.1
EPSS 0.05%
Description
Keycloak was found to not properly enforce token types when validating signatures locally. An authenticated attacker could use this flaw to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.
How to fix CVE-2023-0657
To remediate CVE-2023-0657, upgrade the affected package to a fixed version below.
- —upgrade to 22.0.10 or later
Is CVE-2023-0657 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 22.0.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.4 | CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N |