CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2020-1714
High (8.8). EPSS 2.6% chance of exploitation in the next 30 days. Fixed in org.keycloak:keycloak-core 11.0.0.
A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.
Severity
- EPSS
- 2.6% chance of exploitation in the next 30 days; higher than 85% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- quarkus:quarkus
- redhat:decision_manager
- redhat:jboss_fuse
- redhat:keycloak
- redhat:openshift_application_runtimes
- redhat:process_automation
- redhat:single_sign-on
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-m6mm-q862-j366 | Maven | org.keycloak:keycloak-core | <11.0.0 | 11.0.0 |
| GHSA-m6mm-q862-j366 | Maven | org.keycloak:keycloak-common | <11.0.0 | 11.0.0 |