CVE-2022-4137

moderate-risk
Published 2023-09-25

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.

Do I need to act?

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0.53% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.1/10 High
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Redhat

References (12)

Vendor Advisory https://access.redhat.com/errata/RHSA-2023:1043
Vendor Advisory https://access.redhat.com/errata/RHSA-2023:1044
Vendor Advisory https://access.redhat.com/errata/RHSA-2023:1045
Vendor Advisory https://access.redhat.com/errata/RHSA-2023:1049
Vendor Advisory https://access.redhat.com/security/cve/CVE-2022-4137
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2148496
Vendor Advisory https://access.redhat.com/errata/RHSA-2023:1043
Vendor Advisory https://access.redhat.com/errata/RHSA-2023:1044
Vendor Advisory https://access.redhat.com/errata/RHSA-2023:1045
Vendor Advisory https://access.redhat.com/errata/RHSA-2023:1049
Vendor Advisory https://access.redhat.com/security/cve/CVE-2022-4137
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2148496
37
/ 100
moderate-risk
Severity 28/34 · Critical
Exploitability 2/34 · Minimal
Exposure 7/34 · Low