CVE-2024-3656

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 2.9%, top 15% 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
Elevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 8.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API allow low-privilege users to access administrative functionalities. This flaw allows users to perform actions reserved for administrators, potentially leading to data breaches or system compromise.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
86%
KEV
Not listed

Published

October 9, 2024

Last Modified

April 15, 2026

Advisory Details (7)

Auto-updated Sep 16, 2026
Patch available. Sources: redhat, github.
generic

An analysis of the Keycloak authentication system | Hacker News

https://news.ycombinator.com/item?id=42136000
generic

vulns/HNS-2024-08-Keycloak.md at main · hnsecurity/vulns · GitHub

https://github.com/hnsecurity/vulns/blob/main/HNS-2024-08-Keycloak.md
github Patch Available

Keycloak's admin API allows low privilege users to use administrative functions · CVE-2024-3656 · GitHub Advisory Database · GitHub

https://github.com/advisories/GHSA-2cww-fgmg-4jqc
redhat

2274403 – (CVE-2024-3656) CVE-2024-3656 keycloak: Unguarded admin REST API endpoints allows low privilege users to use administrative functionalities

https://bugzilla.redhat.com/show_bug.cgi?id=2274403
redhat Patch Available

CVE-2024-3656 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2024-3656
redhat Patch Available
https://access.redhat.com/errata/RHSA-2024:3575
redhat Patch Available
https://access.redhat.com/errata/RHSA-2024:3572

Vendor Advisories for CVE-2024-3656(1)

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
redhatpatch2024-06-03redhat
redhatpatch2024-06-03redhat

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 (173 versions)24.0.5—

Weakness Classification(1)

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 9× in last 7d / 29× 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 142 total refreshes for this CVE.

  1. 2026-09-18 19:26 UTCEPSS rescore
  2. 2026-09-18 19:26 UTCEPSS rescore
  3. 2026-09-17 13:20 UTCOSV refresh
  4. 2026-09-16 14:06 UTCEPSS rescore
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  11. 2026-09-11 09:35 UTCEPSS rescore
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  21. 2026-08-30 19:16 UTCEPSS rescore
  22. 2026-08-29 13:43 UTCOSV refresh
  23. 2026-08-28 21:39 UTCEPSS rescore
  24. 2026-08-27 14:23 UTCEPSS rescore
  25. 2026-08-25 13:47 UTCEPSS rescore
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  1. 2026-08-24 14:15 UTCEPSS rescore
  2. 2026-08-23 00:18 UTCEPSS rescore
  3. 2026-08-21 23:47 UTCEPSS rescore
  4. 2026-08-20 22:54 UTCEPSS rescore
  5. 2026-08-19 17:02 UTCEPSS rescore
  6. 2026-08-18 13:46 UTCEPSS rescore
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  8. 2026-08-16 14:54 UTCEPSS rescore
  9. 2026-08-16 02:13 UTCEPSS rescore
  10. 2026-08-15 01:28 UTCEPSS rescore
  11. 2026-08-13 21:59 UTCEPSS rescore
  12. 2026-08-13 01:30 UTCOSV refresh
  13. 2026-08-12 13:49 UTCEPSS rescore
  14. 2026-08-11 13:40 UTCEPSS rescore
  15. 2026-08-10 23:58 UTCEPSS rescore
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  18. 2026-08-06 13:45 UTCEPSS rescore
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  21. 2026-08-04 10:36 UTCEPSS rescore
  22. 2026-08-03 10:34 UTCEPSS rescore
  23. 2026-08-02 02:25 UTCEPSS rescore
  24. 2026-08-01 04:14 UTCEPSS rescore
  25. 2026-07-30 16:26 UTCEPSS rescore
  26. 2026-07-30 01:29 UTCEPSS rescore
  27. 2026-07-28 15:34 UTCEPSS rescore
  28. 2026-07-28 09:24 UTCOSV refresh
  29. 2026-07-27 14:11 UTCEPSS rescore
  30. 2026-07-26 14:53 UTCEPSS rescore
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  32. 2026-07-25 14:16 UTCEPSS rescore
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  35. 2026-07-23 02:37 UTCEG score recompute▼ 0.90
  36. 2026-07-22 14:07 UTCEPSS rescore
  37. 2026-07-21 15:23 UTCEPSS rescore
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  39. 2026-07-20 17:06 UTCEPSS rescore
  40. 2026-07-19 14:30 UTCEPSS rescore
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  42. 2026-07-19 02:28 UTCEPSS rescore
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  44. 2026-07-18 10:03 UTCEPSS rescore
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  46. 2026-07-16 17:02 UTCEPSS rescore
  47. 2026-07-15 16:56 UTCEPSS rescore
  48. 2026-07-15 16:56 UTCEPSS rescore
  49. 2026-07-15 01:59 UTCEPSS rescore
  50. 2026-07-15 01:59 UTCEPSS rescore
  51. 2026-07-13 22:29 UTCEPSS rescore
  52. 2026-07-12 05:45 UTCEPSS rescore
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  54. 2026-07-11 08:26 UTCEPSS rescore
  55. 2026-07-09 19:09 UTCEPSS rescore
  56. 2026-07-09 19:09 UTCEPSS rescore
  57. 2026-07-08 15:14 UTCEPSS rescore
  58. 2026-07-07 13:45 UTCEPSS rescore
  59. 2026-07-06 16:26 UTCEPSS rescore
  60. 2026-07-06 02:22 UTCEPSS rescore
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  62. 2026-07-04 06:30 UTCEPSS rescore
  63. 2026-07-01 15:05 UTCEPSS rescore
  64. 2026-06-30 23:21 UTCEPSS rescore
  65. 2026-06-30 23:21 UTCEPSS rescore
  66. 2026-06-29 14:05 UTCEPSS rescore
  67. 2026-06-28 14:07 UTCEPSS rescore
  68. 2026-06-28 14:06 UTCEPSS rescore
  69. 2026-06-28 04:55 UTCEPSS rescore
  70. 2026-06-28 04:55 UTCEPSS rescore
  71. 2026-06-27 03:07 UTCEPSS rescore
  72. 2026-06-27 03:07 UTCEPSS rescore
  73. 2026-06-25 13:49 UTCEPSS rescore
  74. 2026-06-24 14:04 UTCEPSS rescore
  75. 2026-06-24 14:04 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCh4x0r-dz/CVE-2024-3656
    First seen Oct 12, 2024

    Keycloak admin API allows low privilege users to use administrative functions

    Open source ↗
  • Nucleihttp/cves/2024/CVE-2024-3656.yaml
    First seen Jan 1, 2024

    Keycloak < 24.0.5 - Broken Access Control

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-3656?
CVE-2024-3656 is a high vulnerability published on October 9, 2024. A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API allow low-privilege users to access administrative functionalities. This flaw allows users to perform actions reserved for administrators, potentially leading to data breaches or system compromise.
When was CVE-2024-3656 disclosed?
CVE-2024-3656 was first published in the National Vulnerability Database on October 9, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-3656 actively exploited?
CVE-2024-3656 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 13.9% of all scored CVEs.
What is the CVSS score of CVE-2024-3656?
CVE-2024-3656 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2024-3656?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-3656, 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-2024-3656

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