CVE-2026-16106

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory published 2026-07-17. a secondary CVSS source baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.9Exploit: None knownExposed: 0

A fix is available — apply it.

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(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

July 17, 2026

Last Modified

September 16, 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(2)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhbk-openshift-rhel9/rhbk-openshift-rhel92026-09-16redhat
redhatrhbk/keycloak-rhel9-operator:26.6-202026-09-16redhat

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.

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 20× in last 7d / 63× 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.

Showing the most recent 100 of 148 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-18 04:32 UTCEG score recompute
  3. 2026-09-18 04:32 UTCVendor advisory
  4. 2026-09-18 04:32 UTCGHSA enrichment
  5. 2026-09-16 19:21 UTCEG score recompute
  6. 2026-09-16 19:21 UTCGHSA enrichment
  7. 2026-09-16 18:41 UTCEG score recompute
  8. 2026-09-16 18:41 UTCGHSA enrichment
  9. 2026-09-16 17:11 UTCEG score recompute
  10. 2026-09-16 17:11 UTCGHSA enrichment
  11. 2026-09-16 15:55 UTCEG score recompute
  12. 2026-09-16 15:55 UTCGHSA enrichment
  13. 2026-09-16 14:07 UTCEPSS rescore
  14. 2026-09-16 05:14 UTCEPSS rescore
  15. 2026-09-14 07:01 UTCEG score recompute
  16. 2026-09-14 07:01 UTCGHSA enrichment
  17. 2026-09-13 16:46 UTCEPSS rescore
  18. 2026-09-13 05:15 UTCEG score recompute
  19. 2026-09-13 05:15 UTCGHSA enrichment
  20. 2026-09-12 15:00 UTCEPSS rescore
  21. 2026-09-11 21:06 UTCEG score recompute
  22. 2026-09-11 21:06 UTCGHSA enrichment
  23. 2026-09-11 14:52 UTCEPSS rescore
  24. 2026-09-11 09:36 UTCEPSS rescore
  25. 2026-09-10 09:34 UTCEPSS rescore
Show 75 more
  1. 2026-09-08 22:00 UTCEPSS rescore
  2. 2026-09-08 00:00 UTCEG score recompute
  3. 2026-09-08 00:00 UTCGHSA enrichment
  4. 2026-09-07 16:01 UTCEPSS rescore
  5. 2026-09-06 13:47 UTCEPSS rescore
  6. 2026-09-05 20:26 UTCEG score recompute
  7. 2026-09-05 20:26 UTCGHSA enrichment
  8. 2026-09-04 05:06 UTCEPSS rescore
  9. 2026-09-02 14:11 UTCEPSS rescore
  10. 2026-09-01 13:53 UTCEPSS rescore
  11. 2026-09-01 04:39 UTCEPSS rescore
  12. 2026-08-31 10:18 UTCGHSA enrichment
  13. 2026-08-31 05:04 UTCEG score recompute
  14. 2026-08-31 05:04 UTCGHSA enrichment
  15. 2026-08-30 19:17 UTCEPSS rescore
  16. 2026-08-30 03:17 UTCEG score recompute
  17. 2026-08-30 03:17 UTCGHSA enrichment
  18. 2026-08-30 01:22 UTCEPSS rescore
  19. 2026-08-28 21:41 UTCEPSS rescore
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-27 13:45 UTCEG score recompute
  22. 2026-08-27 13:45 UTCGHSA enrichment
  23. 2026-08-26 14:46 UTCEPSS rescore
  24. 2026-08-26 11:55 UTCEG score recompute
  25. 2026-08-26 11:55 UTCGHSA enrichment
  26. 2026-08-25 13:48 UTCEPSS rescore
  27. 2026-08-25 08:44 UTCEG score recompute
  28. 2026-08-25 08:44 UTCGHSA enrichment
  29. 2026-08-24 06:38 UTCGHSA enrichment
  30. 2026-08-23 04:51 UTCEG score recompute
  31. 2026-08-23 04:51 UTCGHSA enrichment
  32. 2026-08-23 00:19 UTCEPSS rescore
  33. 2026-08-22 03:05 UTCEG score recompute
  34. 2026-08-22 03:05 UTCGHSA enrichment
  35. 2026-08-21 23:49 UTCEPSS rescore
  36. 2026-08-21 01:13 UTCEG score recompute
  37. 2026-08-21 01:13 UTCGHSA enrichment
  38. 2026-08-20 22:55 UTCEPSS rescore
  39. 2026-08-19 23:28 UTCEG score recompute
  40. 2026-08-19 23:28 UTCGHSA enrichment
  41. 2026-08-19 17:03 UTCEPSS rescore
  42. 2026-08-18 19:54 UTCEG score recompute
  43. 2026-08-18 19:54 UTCGHSA enrichment
  44. 2026-08-18 13:48 UTCEPSS rescore
  45. 2026-08-17 13:47 UTCEPSS rescore
  46. 2026-08-17 10:53 UTCEG score recompute
  47. 2026-08-17 10:53 UTCGHSA enrichment
  48. 2026-08-16 14:56 UTCEPSS rescore
  49. 2026-08-16 09:07 UTCEG score recompute
  50. 2026-08-16 09:07 UTCGHSA enrichment
  51. 2026-08-16 02:14 UTCEPSS rescore
  52. 2026-08-15 07:21 UTCEG score recompute
  53. 2026-08-15 07:21 UTCGHSA enrichment
  54. 2026-08-15 01:30 UTCEPSS rescore
  55. 2026-08-14 04:54 UTCEG score recompute
  56. 2026-08-14 04:54 UTCGHSA enrichment
  57. 2026-08-13 22:00 UTCEPSS rescore
  58. 2026-08-13 03:08 UTCEG score recompute
  59. 2026-08-13 03:08 UTCGHSA enrichment
  60. 2026-08-12 13:50 UTCEPSS rescore
  61. 2026-08-12 01:22 UTCEG score recompute
  62. 2026-08-12 01:22 UTCGHSA enrichment
  63. 2026-08-11 13:42 UTCEPSS rescore
  64. 2026-08-11 00:00 UTCEPSS rescore
  65. 2026-08-10 23:37 UTCGHSA enrichment
  66. 2026-08-09 21:51 UTCEG score recompute
  67. 2026-08-09 21:51 UTCGHSA enrichment
  68. 2026-08-09 13:46 UTCEPSS rescore
  69. 2026-08-08 20:06 UTCEG score recompute
  70. 2026-08-08 20:06 UTCGHSA enrichment
  71. 2026-08-08 16:37 UTCEPSS rescore
  72. 2026-08-07 18:20 UTCEG score recompute
  73. 2026-08-07 18:20 UTCGHSA enrichment
  74. 2026-08-06 16:34 UTCEG score recompute
  75. 2026-08-06 16:34 UTCGHSA enrichment

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 September 16, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 63.7% of all scored CVEs.
What is the CVSS score of CVE-2026-16106?
CVE-2026-16106 has a CVSS v3 base score of 4.9 (NVD).
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.

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