CVE-2026-16106

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreHIGH confidence

Score 4.9 from GitHub Security Advisory published 2026-07-17. the CNA's CVSS baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
Trending — 4 sources updated this week
4.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A flaw was found in the admin REST API of Keycloak, a solution for identity and access management. The issue occurs when a delegated administrator attempts to remove a child role from a composite role. Due to missing authorization checks, an attacker with limited administrative permissions can remove privileged roles they are not authorized to manage, leading to a loss of access for other users and administrators.

CVSS v3
4.9
EG Score
4.9(high)
EPSS
10.1%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 19, 2026

Advisory Details (2)

Auto-updated Jul 17, 2026
Patch available. Sources: redhat.
redhat

2501739 – (CVE-2026-16106) CVE-2026-16106 keycloak-services: keycloak-services: Incorrect authorization in admin role-composite deletion allows delegated admin to remove privileged child roles

https://bugzilla.redhat.com/show_bug.cgi?id=2501739
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-16106

Vendor Advisories for CVE-2026-16106(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 11× 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.

  1. 2026-07-21 15:24 UTCEPSS rescore
  2. 2026-07-20 17:08 UTCEPSS rescore
  3. 2026-07-19 14:30 UTCEPSS rescore
  4. 2026-07-19 09:18 UTCEG score recompute
  5. 2026-07-19 09:18 UTCGHSA enrichment
  6. 2026-07-19 02:28 UTCEPSS rescore
  7. 2026-07-17 20:02 UTCEG score recompute
  8. 2026-07-17 20:02 UTCGHSA enrichment
  9. 2026-07-17 18:01 UTCEG score recompute
  10. 2026-07-17 16:46 UTCEG score recompute
  11. 2026-07-17 16:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16106?
CVE-2026-16106 is a medium vulnerability published on July 17, 2026. A flaw was found in the admin REST API of Keycloak, a solution for identity and access management. The issue occurs when a delegated administrator attempts to remove a child role from a composite role. Due to missing authorization checks, an attacker with limited administrative permissions can…
When was CVE-2026-16106 disclosed?
CVE-2026-16106 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on July 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16106 actively exploited?
CVE-2026-16106 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-16106?
CVE-2026-16106 has a CVSS v4.0 base score of 4.9 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-16106?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16106, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-16106

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