CVE-2026-16105

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory published 2026-07-31. 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 RoleContainerResource component of Keycloak. The issue occurs because certain name-based endpoints in the admin REST API do not properly enforce authorization checks when managing composite roles. This allows a delegated administrator with manage-realm permissions to remove essential child roles from built-in admin roles, potentially disrupting administrative functions within a realm.

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
15%
KEV
Not listed

Published

July 31, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Jul 31, 2026
Patch available. Sources: redhat.
redhat

2501738 – (CVE-2026-16105) CVE-2026-16105 keycloak-services: keycloak-services: Missing per-role authorization on RoleContainerResource composite endpoints

https://bugzilla.redhat.com/show_bug.cgi?id=2501738
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-16105

Vendor Advisories for CVE-2026-16105(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/keycloak-rhel9-operator:26.6-202026-09-16redhat
redhatrhbk-openshift-rhel9/rhbk-openshift-rhel92026-09-16redhat

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 27× in last 7d / 86× 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 146 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-16105?
CVE-2026-16105 is a medium vulnerability published on July 31, 2026. A flaw was found in the RoleContainerResource component of Keycloak. The issue occurs because certain name-based endpoints in the admin REST API do not properly enforce authorization checks when managing composite roles. This allows a delegated administrator with manage-realm permissions to remove…
When was CVE-2026-16105 disclosed?
CVE-2026-16105 was first published in the National Vulnerability Database on July 31, 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-2026-16105 actively exploited?
CVE-2026-16105 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 84.5% of all scored CVEs.
What is the CVSS score of CVE-2026-16105?
CVE-2026-16105 has a CVSS v3 base score of 4.9 (NVD).
How do I remediate CVE-2026-16105?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16105, 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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