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CVE-2026-107889 Keycloak-services: keycloak-services: stored xss on login page via kcsanitize bypass

🗓️ 09 Oct 2026 04:28:55Reported by redhatType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Stored XSS in Keycloak login theme rendering allows realm administrators to execute JS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-107889
9 Oct 202604:28
–cve
euvd
EUVD
EUVD-2026-95478
9 Oct 202604:28
–euvd
mend
Mend
CVE-2026-107889
9 Oct 202604:28
–mend
nvd
NVD
CVE-2026-107889
9 Oct 202605:16
–nvd
ptsecurity
Positive Technologies
PT-2026-108726
9 Oct 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-107889
9 Oct 202604:23
–redhatcve
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Build of Keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "keycloak-services",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:"
    ]
  },
  {
    "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:"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "keycloak-services",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7"
    ]
  }
]

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