CVE-2026-4325
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Summary
A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an attacker to delete arbitrary single-use entries, which can enable the replay of consumed action tokens, such as password reset links. This could lead to unauthorized access or account compromise.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2.15-1 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2-18 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2-18 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4.11-1 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-14 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-14 < * | unaffected |
Weaknesses
- CWE-653: Improper Isolation or Compartmentalization
Workarounds
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://access.redhat.com/errata/RHSA-2026:6475
- https://access.redhat.com/errata/RHSA-2026:6476
- https://access.redhat.com/errata/RHSA-2026:6477
- https://access.redhat.com/errata/RHSA-2026:6478
- https://access.redhat.com/security/cve/CVE-2026-4325
- https://bugzilla.redhat.com/show_bug.cgi?id=2448351
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