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CVE-2026-18967

🗓️ 06 Aug 2026 05:33:17Reported by redhatType 
cve
 cve
🔗 web.nvd.nist.gov👁 85 Views

Keycloak SAML broker IdP-Initiated flow fails OneTimeUse, enabling assertion replay.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-18967
6 Aug 202605:33
–attackerkb
cvelist
Cvelist
CVE-2026-18967 Keycloak-services: keycloak-services: saml onetimeuse assertion replay in idp-initiated broker flow
6 Aug 202605:33
–cvelist
euvd
EUVD
EUVD-2026-53716
6 Aug 202605:33
–euvd
mend
Mend
CVE-2026-18967
6 Aug 202605:33
–mend
nvd
NVD
CVE-2026-18967
6 Aug 202607:16
–nvd
ptsecurity
Positive Technologies
PT-2026-68407
6 Aug 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-18967: Authentication Bypass by Capture-replay
6 Aug 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-18967
6 Aug 202605:33
–redhatcve
snyk
Snyk
Replay Attack
31 Jul 202614:42
–snyk
snyk
Snyk
Replay Attack
31 Jul 202614:42
–snyk
Rows per page
[
  {
    "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/rhbk-keycloak-rhel9",
    "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-openshift-rhel9/rhbk-openshift-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "packageName": "keycloak-services",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:jbosseapxp"
    ]
  },
  {
    "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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10 Aug 2026 19:15Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.16.4 - 8.1
EPSS0.00233
SSVC
85