What’s Vulnerable › Vulnerabilities

CVE-2022-1438: Keycloak: xss on impersonation under specific circumstances

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-20 · updated 2026-06-17
• Weakness: CWE-79

Description

A flaw was found in Keycloak. Under specific circumstances, HTML entities are not sanitized during user impersonation, resulting in a Cross-site scripting (XSS) vulnerability.

Affected products

• Keycloak: all versions

References

• https://access.redhat.com/errata/RHSA-2023:1043
• https://access.redhat.com/errata/RHSA-2023:1044
• https://access.redhat.com/errata/RHSA-2023:1045
• https://access.redhat.com/errata/RHSA-2023:1047
• https://access.redhat.com/errata/RHSA-2023:1049
• https://access.redhat.com/security/cve/CVE-2022-1438
• https://bugzilla.redhat.com/show_bug.cgi?id=2031904
• https://access.redhat.com/errata/RHSA-2023:1043
• https://access.redhat.com/errata/RHSA-2023:1044
• https://access.redhat.com/errata/RHSA-2023:1045
• https://access.redhat.com/errata/RHSA-2023:1047
• https://access.redhat.com/errata/RHSA-2023:1049

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