CVSS 3.1
6.1 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2022-4137
A reflected cross-site scripting (XSS) vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be vulnerable. This may compromise user details, allowing it to be changed or collected by an attacker.
Severity
- EPSS
- 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-79, CWE-81
- Published
- Modified
- Record from
- the NVD, synced
Affected
- redhat:keycloak
- redhat:single_sign-on
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-9hhc-pj4w-w5rv | Maven | org.keycloak:keycloak-parent | <20.0.5 | 20.0.5 |