Vulnerability · Published Aug 4, 2023 · Assigned by redhat
CVE-2023-0264
Medium 5.0
In plain English
A medium-severity security flaw in Keycloak from redhat.com. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.keycloak:keycloak-services | 21.0.1 | GHSA-9g98-5mj6-f9mv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| redhat.com | Keycloak | 18.0.6 – before 18.0.6 |