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CVE-2026-4282

HIGH

7.4

Description

A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an unauthenticated attacker to forge authorization codes. Successful exploitation can lead to the creation of admin-capable access tokens, resulting in privilege escalation.

CVE Details

CVSS v3.1 Score7.4

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published4/2/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-653

References

https://access.redhat.com/errata/RHSA-2026:6475(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:6476(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:6477(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:6478(secalert@redhat.com)

https://access.redhat.com/security/cve/CVE-2026-4282(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2448061(secalert@redhat.com)

IOC Correlations

No correlations recorded

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