CVE-2020-35509
Keycloak vulnerable to Improper Certificate Validation
5.4
MEDIUM
CVSS 3.1
EPSS 0.09%
Description
keycloak accepts an expired certificate by the direct-grant authenticator because of missing time stamp validations. The highest threat from this vulnerability is to data confidentiality and integrity. This issue was partially fixed in version [13.0.1](https://github.com/keycloak/keycloak/pull/6330) and more completely fixed in version [14.0.0](https://github.com/keycloak/keycloak/pull/8067).
How to fix CVE-2020-35509
To remediate CVE-2020-35509, upgrade the affected package to a fixed version below.
- —upgrade to 14.0.0 or later
Is CVE-2020-35509 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 14.0.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |