CVSS 3.1
5.0 mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:LCVE-2023-0264
A flaw was found in Keycloaks OpenID Connect user authentication, which may incorrectly authenticate requests. An authenticated attacker who could obtain information from a user request within the same realm could use that data to impersonate the victim and generate new session tokens. This issue could impact confidentiality, integrity, and availability.
Severity
- EPSS
- 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
- CWE
- CWE-287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- redhat:keycloak
- redhat:openshift_container_platform
- redhat:openshift_container_platform_for_ibm_linuxone
- redhat:openshift_container_platform_ibm_z_systems
- redhat:single_sign-on
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-9g98-5mj6-f9mv | Maven | org.keycloak:keycloak-services | <21.0.1 | 21.0.1 |