CVE-2026-3009

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 74% 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).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

A fix is available — apply it.

A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

March 5, 2026

Last Modified

August 17, 2026

Advisory Details (5)

Auto-updated Jun 30, 2026
Patch available. Sources: redhat.
redhat Patch Available
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3009.json
redhat

2441867 – (CVE-2026-3009) CVE-2026-3009 org.keycloak/keycloak-services: Improper Enforcement of Disabled Identity Provider in IdentityBrokerService (Authentication Bypass)

https://bugzilla.redhat.com/show_bug.cgi?id=2441867
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-3009
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:3948
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:3947

Vendor Advisories for CVE-2026-3009(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:26.4-122026-03-05redhat
redhatrhbk/keycloak-rhel92026-03-05redhat

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)
PackageVulnerable rangeFixed inDependents
org.keycloak:keycloak-services1.0-alpha-1 ... 9.0.3 (221 versions)26.5.5—

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-3009?
CVE-2026-3009 is a high vulnerability published on March 5, 2026. A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the…
When was CVE-2026-3009 disclosed?
CVE-2026-3009 was first published in the National Vulnerability Database on March 5, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3009 actively exploited?
CVE-2026-3009 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 73.7% of all scored CVEs.
What is the CVSS score of CVE-2026-3009?
CVE-2026-3009 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-3009?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3009, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-3009

Explore →

Is Your Infrastructure Affected by CVE-2026-3009?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs