A flaw was found in Keycloak. An administrator with manage-clients permission can exploit a misconfiguration where this permission is equivalent to manage-permissions. This allows the administrator to escalate privileges and gain control over roles, users, or other administrative functions within the realm. This privilege escalation can occur when admin permissions are enabled at the realm level.
CVE-2026-3121
This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 98% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EPSS
- 38.0%
- KEV
- Not listed
Published
March 26, 2026
Last Modified
April 2, 2026
References (4)
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:6477
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:6478
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2026-3121
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2442277
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | rhbk/keycloak-rhel9-operator:26.4-14 | 2026-04-02 | redhat |
| redhat | rhbk/keycloak-rhel9 | 2026-04-02 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.keycloak:keycloak-services | 1.0-alpha-1 ... 9.0.3 (222 versions) | 26.5.6 | — |
All Vendor Advisories
(2)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 7× in last 7d / 34× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
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- 2026-07-01 15:06 UTCEPSS rescore
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- 2026-06-30 23:22 UTCEPSS rescore
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- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-11 23:13 UTCVendor advisory
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 14:47 UTCVendor advisory
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-09 15:30 UTCVendor advisory
- 2026-06-08 14:17 UTCEPSS rescore
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- 2026-06-08 13:21 UTCVendor advisory
- 2026-06-07 15:25 UTCEPSS rescore
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- 2026-06-07 12:02 UTCVendor advisory
- 2026-06-06 13:47 UTCEPSS rescore
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- 2026-05-29 13:44 UTCEPSS rescore
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- 2026-05-20 20:09 UTCEG score recompute
- 2026-05-20 20:09 UTCVendor advisory
- 2026-05-20 11:22 UTCEPSS rescore
- 2026-05-20 11:22 UTCEPSS rescore
Related CVEs(same vendor)
Frequently asked(5)
What is CVE-2026-3121?
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What is the CVSS score of CVE-2026-3121?
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Dependency Blast Radius
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