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CVE-2026-4633

🗓️ 23 Mar 2026 10:53:35Reported by redhatType 
cve
 cve
🔗 web.nvd.nist.gov👁 76 Views

Keycloak CVE-2026-4633 enables user enumeration via error messages in identity-first login when organizations are enabled.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-4633
23 Mar 202610:53
–attackerkb
cgr
Chainguard
CVE-2026-4633 vulnerabilities
5 Apr 202601:17
–cgr
circl
Circl
CVE-2026-4633
23 Mar 202612:42
–circl
cnnvd
CNNVD
Keycloak security vulnerabilities
23 Mar 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-4633 Keycloak: keycloak: user enumeration via differential error messages
23 Mar 202610:53
–cvelist
euvd
EUVD
EUVD-2026-14400
23 Mar 202612:30
–euvd
github
Github Security Blog
Keycloak's identity-first login flow exposes user information
23 Mar 202612:30
–github
kittysploit
KittySploit
ptrace Credential Steal LPE (CVE-2026-4633)
5 Oct 202614:20
–kittysploit
nvd
NVD
CVE-2026-4633
23 Mar 202611:16
–nvd
osv_cga
osv_cga
CGA-2FX2-FQ44-FPX3
18 Jun 202618:38
–osv_cga
Rows per page
NVD
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4.12",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Build of Keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhbk/keycloak-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:"
    ]
  }
]

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22 Oct 2026 22:18Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.13.7
EPSS0.00468
SSVC
76