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CVE-2026-18967

🗓️ 06 Aug 2026 05:33:08Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 22 Views

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

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-18967
6 Aug 202605:33
–attackerkb
cve
CVE
CVE-2026-18967
6 Aug 202605:33
–cve
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
snyk
Snyk
Replay Attack
31 Jul 202614:42
–snyk
snyk
Snyk
Replay Attack
31 Jul 202614:42
–snyk
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11 Aug 2026 06:25Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.4 - 8.1
EPSS0.00233
SSVC
22