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% (86th percentile of EPSS-scored CVEs). 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 — 4 sources updated this weekElevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.9%CVSS: 8.1Exploit: Elevated riskExposed services: Not assessed

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
8.1HIGHmedium confidence
EG Risk
52
EG Risk 52/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
2.9%
EPSS %ILE
86th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 9, 2024

Last Modified

October 9, 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
githubMentions a patch (unverified)

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
redhatMentions a patch (unverified)

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
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2024:3575
redhatMentions a patch (unverified)
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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
org.keycloak:keycloak-services1.0-alpha-1 ... 9.0.3 (173 versions)
  • every version up to 24.0.5: fixed in 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 10× in last 7d / 35× 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 166 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-09 16:36 UTCVendor advisory
  3. 2026-10-09 15:48 UTCEG score recompute
  4. 2026-10-09 15:48 UTCVendor advisory
  5. 2026-10-08 17:08 UTCEPSS rescore
  6. 2026-10-07 23:46 UTCEPSS rescore
  7. 2026-10-07 07:35 UTCOSV refresh
  8. 2026-10-06 15:15 UTCEPSS rescore
  9. 2026-10-05 17:41 UTCEPSS rescore
  10. 2026-10-03 14:24 UTCEPSS rescore
  11. 2026-10-01 19:48 UTCEPSS rescore
  12. 2026-09-30 19:46 UTCEG score recompute
  13. 2026-09-30 15:01 UTCEPSS rescore
  14. 2026-09-29 15:17 UTCEPSS rescore
  15. 2026-09-28 13:50 UTCEPSS rescore
  16. 2026-09-27 13:44 UTCEPSS rescore
  17. 2026-09-26 15:57 UTCEPSS rescore
  18. 2026-09-24 14:01 UTCEPSS rescore
  19. 2026-09-23 13:46 UTCEPSS rescore
  20. 2026-09-22 14:47 UTCEPSS rescore
  21. 2026-09-21 20:32 UTCEPSS rescore
  22. 2026-09-20 20:14 UTCEPSS rescore
  23. 2026-09-20 20:14 UTCEPSS rescore
  24. 2026-09-19 15:40 UTCEPSS rescore
  25. 2026-09-18 19:26 UTCEPSS rescore
Show 75 more
  1. 2026-09-18 19:26 UTCEPSS rescore
  2. 2026-09-17 13:20 UTCOSV refresh
  3. 2026-09-16 14:06 UTCEPSS rescore
  4. 2026-09-16 05:12 UTCEPSS rescore
  5. 2026-09-15 03:08 UTCEPSS rescore
  6. 2026-09-15 03:08 UTCEPSS rescore
  7. 2026-09-13 16:45 UTCEPSS rescore
  8. 2026-09-12 14:59 UTCEPSS rescore
  9. 2026-09-11 14:51 UTCEPSS rescore
  10. 2026-09-11 09:35 UTCEPSS rescore
  11. 2026-09-08 21:58 UTCEPSS rescore
  12. 2026-09-07 16:00 UTCEPSS rescore
  13. 2026-09-06 13:46 UTCEPSS rescore
  14. 2026-09-06 13:46 UTCEPSS rescore
  15. 2026-09-05 15:27 UTCEPSS rescore
  16. 2026-09-04 13:59 UTCEPSS rescore
  17. 2026-09-04 05:05 UTCEPSS rescore
  18. 2026-09-02 14:10 UTCEPSS rescore
  19. 2026-09-01 13:52 UTCEPSS rescore
  20. 2026-08-30 19:16 UTCEPSS rescore
  21. 2026-08-29 13:43 UTCOSV refresh
  22. 2026-08-28 21:39 UTCEPSS rescore
  23. 2026-08-27 14:23 UTCEPSS rescore
  24. 2026-08-25 13:47 UTCEPSS rescore
  25. 2026-08-24 14:15 UTCEPSS rescore
  26. 2026-08-23 00:18 UTCEPSS rescore
  27. 2026-08-21 23:47 UTCEPSS rescore
  28. 2026-08-20 22:54 UTCEPSS rescore
  29. 2026-08-19 17:02 UTCEPSS rescore
  30. 2026-08-18 13:46 UTCEPSS rescore
  31. 2026-08-17 13:45 UTCEPSS rescore
  32. 2026-08-16 14:54 UTCEPSS rescore
  33. 2026-08-16 02:13 UTCEPSS rescore
  34. 2026-08-15 01:28 UTCEPSS rescore
  35. 2026-08-13 21:59 UTCEPSS rescore
  36. 2026-08-13 01:30 UTCOSV refresh
  37. 2026-08-12 13:49 UTCEPSS rescore
  38. 2026-08-11 13:40 UTCEPSS rescore
  39. 2026-08-10 23:58 UTCEPSS rescore
  40. 2026-08-08 16:35 UTCEPSS rescore
  41. 2026-08-07 16:25 UTCEPSS rescore
  42. 2026-08-06 13:45 UTCEPSS rescore
  43. 2026-08-05 19:16 UTCEPSS rescore
  44. 2026-08-04 15:08 UTCEPSS rescore
  45. 2026-08-04 10:36 UTCEPSS rescore
  46. 2026-08-03 10:34 UTCEPSS rescore
  47. 2026-08-02 02:25 UTCEPSS rescore
  48. 2026-08-01 04:14 UTCEPSS rescore
  49. 2026-07-30 16:26 UTCEPSS rescore
  50. 2026-07-30 01:29 UTCEPSS rescore
  51. 2026-07-28 15:34 UTCEPSS rescore
  52. 2026-07-28 09:24 UTCOSV refresh
  53. 2026-07-27 14:11 UTCEPSS rescore
  54. 2026-07-26 14:53 UTCEPSS rescore
  55. 2026-07-26 14:53 UTCEPSS rescore
  56. 2026-07-25 14:16 UTCEPSS rescore
  57. 2026-07-24 14:16 UTCEPSS rescore
  58. 2026-07-23 14:17 UTCEPSS rescore
  59. 2026-07-23 02:37 UTCEG score recompute▼ 0.90
  60. 2026-07-22 14:07 UTCEPSS rescore
  61. 2026-07-21 15:23 UTCEPSS rescore
  62. 2026-07-21 15:23 UTCEPSS rescore
  63. 2026-07-20 17:06 UTCEPSS rescore
  64. 2026-07-19 14:30 UTCEPSS rescore
  65. 2026-07-19 14:30 UTCEPSS rescore
  66. 2026-07-19 02:28 UTCEPSS rescore
  67. 2026-07-19 02:28 UTCEPSS rescore
  68. 2026-07-18 10:03 UTCEPSS rescore
  69. 2026-07-18 10:03 UTCEPSS rescore
  70. 2026-07-16 17:02 UTCEPSS rescore
  71. 2026-07-15 16:56 UTCEPSS rescore
  72. 2026-07-15 16:56 UTCEPSS rescore
  73. 2026-07-15 01:59 UTCEPSS rescore
  74. 2026-07-15 01:59 UTCEPSS rescore
  75. 2026-07-13 22:29 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 product + same vendor + same CWE)

Same vendor

1 shown

redhat:RHSA-2024:3572

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 on October 9, 2024, with the most recent update on October 9, 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 2.9% probability of exploitation in the next 30 days (86th percentile of EPSS-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?
A fix for CVE-2024-3656 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-3656 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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