CVE-2026-16104

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — Patch released this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in the authentication configuration endpoint of the keycloak-services component, which is the core engine for Red Hat Build of Keycloak identity and access management. The issue occurs because the system fails to mask sensitive configuration values, such as reCAPTCHA secret keys, when they are requested by administrators with view-only permissions. This can lead to the exposure of third-party service credentials to unauthorized personnel or through administrative logs.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
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

2501737 – (CVE-2026-16104) CVE-2026-16104 keycloak-services: keycloak-services: Authenticator config endpoint exposes raw reCAPTCHA secrets to view-only admins

https://bugzilla.redhat.com/show_bug.cgi?id=2501737
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-16104

Vendor Advisories for CVE-2026-16104(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 17× in last 7d / 60× 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 144 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 UTCGHSA enrichment
  6. 2026-09-16 18:41 UTCGHSA enrichment
  7. 2026-09-16 17:11 UTCGHSA enrichment
  8. 2026-09-16 15:55 UTCEG score recompute
  9. 2026-09-16 15:55 UTCGHSA enrichment
  10. 2026-09-16 14:07 UTCEPSS rescore
  11. 2026-09-16 05:14 UTCEPSS rescore
  12. 2026-09-14 05:51 UTCEG score recompute
  13. 2026-09-14 05:51 UTCGHSA enrichment
  14. 2026-09-13 16:46 UTCEPSS rescore
  15. 2026-09-13 05:15 UTCEG score recompute
  16. 2026-09-13 05:15 UTCGHSA enrichment
  17. 2026-09-12 15:00 UTCEPSS rescore
  18. 2026-09-11 21:06 UTCEG score recompute
  19. 2026-09-11 21:06 UTCGHSA enrichment
  20. 2026-09-11 14:52 UTCEPSS rescore
  21. 2026-09-11 09:36 UTCEPSS rescore
  22. 2026-09-10 09:34 UTCEPSS rescore
  23. 2026-09-08 22:00 UTCEPSS rescore
  24. 2026-09-08 00:00 UTCEG score recompute
  25. 2026-09-08 00:00 UTCGHSA enrichment
Show 75 more
  1. 2026-09-07 16:01 UTCEPSS rescore
  2. 2026-09-06 13:47 UTCEPSS rescore
  3. 2026-09-05 20:26 UTCEG score recompute
  4. 2026-09-05 20:26 UTCGHSA enrichment
  5. 2026-09-04 05:06 UTCEPSS rescore
  6. 2026-09-02 14:11 UTCEPSS rescore
  7. 2026-09-01 13:53 UTCEPSS rescore
  8. 2026-08-31 15:39 UTCGHSA enrichment
  9. 2026-08-31 10:18 UTCGHSA enrichment
  10. 2026-08-31 03:53 UTCEG score recompute
  11. 2026-08-31 03:53 UTCGHSA enrichment
  12. 2026-08-30 19:17 UTCEPSS rescore
  13. 2026-08-30 03:17 UTCEG score recompute
  14. 2026-08-30 03:17 UTCGHSA enrichment
  15. 2026-08-30 01:22 UTCEPSS rescore
  16. 2026-08-28 21:41 UTCEPSS rescore
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-27 12:13 UTCEG score recompute
  19. 2026-08-27 12:13 UTCGHSA enrichment
  20. 2026-08-26 14:46 UTCEPSS rescore
  21. 2026-08-26 05:46 UTCEG score recompute
  22. 2026-08-26 05:46 UTCGHSA enrichment
  23. 2026-08-25 13:48 UTCEPSS rescore
  24. 2026-08-25 04:20 UTCEG score recompute
  25. 2026-08-25 04:20 UTCGHSA enrichment
  26. 2026-08-24 03:44 UTCGHSA enrichment
  27. 2026-08-23 02:19 UTCEG score recompute
  28. 2026-08-23 02:19 UTCGHSA enrichment
  29. 2026-08-23 00:19 UTCEPSS rescore
  30. 2026-08-22 01:38 UTCEG score recompute
  31. 2026-08-22 01:38 UTCGHSA enrichment
  32. 2026-08-21 23:49 UTCEPSS rescore
  33. 2026-08-21 01:02 UTCEG score recompute
  34. 2026-08-21 01:02 UTCGHSA enrichment
  35. 2026-08-20 22:55 UTCEPSS rescore
  36. 2026-08-20 00:26 UTCEG score recompute
  37. 2026-08-20 00:26 UTCGHSA enrichment
  38. 2026-08-19 17:03 UTCEPSS rescore
  39. 2026-08-18 23:50 UTCEG score recompute
  40. 2026-08-18 23:50 UTCGHSA enrichment
  41. 2026-08-18 13:48 UTCEPSS rescore
  42. 2026-08-17 23:12 UTCEG score recompute
  43. 2026-08-17 23:12 UTCGHSA enrichment
  44. 2026-08-17 13:47 UTCEPSS rescore
  45. 2026-08-16 22:37 UTCEG score recompute
  46. 2026-08-16 22:37 UTCGHSA enrichment
  47. 2026-08-16 14:56 UTCEPSS rescore
  48. 2026-08-16 02:14 UTCEPSS rescore
  49. 2026-08-15 22:01 UTCEG score recompute
  50. 2026-08-15 22:01 UTCGHSA enrichment
  51. 2026-08-15 01:30 UTCEPSS rescore
  52. 2026-08-14 21:25 UTCEG score recompute
  53. 2026-08-14 21:25 UTCGHSA enrichment
  54. 2026-08-13 22:00 UTCEPSS rescore
  55. 2026-08-13 20:49 UTCGHSA enrichment
  56. 2026-08-12 20:13 UTCEG score recompute
  57. 2026-08-12 20:13 UTCGHSA enrichment
  58. 2026-08-12 13:50 UTCEPSS rescore
  59. 2026-08-11 19:38 UTCEG score recompute
  60. 2026-08-11 19:38 UTCGHSA enrichment
  61. 2026-08-11 13:42 UTCEPSS rescore
  62. 2026-08-11 00:00 UTCEPSS rescore
  63. 2026-08-10 18:57 UTCGHSA enrichment
  64. 2026-08-09 18:22 UTCEG score recompute
  65. 2026-08-09 18:22 UTCGHSA enrichment
  66. 2026-08-09 13:46 UTCEPSS rescore
  67. 2026-08-08 17:46 UTCEG score recompute
  68. 2026-08-08 17:46 UTCGHSA enrichment
  69. 2026-08-08 16:37 UTCEPSS rescore
  70. 2026-08-07 17:10 UTCEG score recompute
  71. 2026-08-07 17:10 UTCGHSA enrichment
  72. 2026-08-06 16:34 UTCEG score recompute▲ 2.20
  73. 2026-08-06 16:34 UTCGHSA enrichment
  74. 2026-08-06 16:30 UTCNVD updateCVSS v3 → 6.5
  75. 2026-08-06 13:46 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-16104?
CVE-2026-16104 is a medium vulnerability published on July 17, 2026. A flaw was found in the authentication configuration endpoint of the keycloak-services component, which is the core engine for Red Hat Build of Keycloak identity and access management. The issue occurs because the system fails to mask sensitive configuration values, such as reCAPTCHA secret keys,…
When was CVE-2026-16104 disclosed?
CVE-2026-16104 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-2026-16104 actively exploited?
CVE-2026-16104 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 82.2% of all scored CVEs.
What is the CVSS score of CVE-2026-16104?
CVE-2026-16104 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-16104?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16104, 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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