CVE-2026-4325
MEDIUMDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 34% of all known CVEs.
References
Related Vulnerabilities
Other CWE-653 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2025-1974 | Critical | 9.8 | 99% | - | - |
| CVE-2025-57738 | High | 7.2 | 23% | - | Fix |
| CVE-2025-21590 | Medium | 4.4 | 1.7% | KEV | Fix |
| CVE-2026-24781 | Critical | 9.8 | 1.2% | - | Fix |
| CVE-2026-53421 | Critical | 9.8 | 1.1% | - | Fix |
| CVE-2024-0135 | High | 7.6 | 1.1% | - | Fix |
Common questions
How do I fix CVE-2026-4325?
No published fix for CVE-2026-4325 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-4325 being actively exploited?
Not that we know of. CVE-2026-4325 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.41% is the estimated probability that it will be exploited in the next 30 days. That is higher than 34% of all scored CVEs.
How severe is CVE-2026-4325?
CVE-2026-4325 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2026-4325
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.