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CVE-2026-18212 Keycloak-services: keycloak-services: saml redirect deflate helpers leak native zlib state

🗓️ 16 Sep 2026 14:54:15Reported by redhatType 
cvelist
 cvelist🔗 www.cve.org👁 9 Views

Unauthenticated DoS in Keycloak SAML Redirect Binding via DEFLATE helpers leaking zlib memory.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE		CVE-2026-18212
16 Sep 202614:54
–cve
euvd
EUVD		EUVD-2026-80828
16 Sep 202614:54
–euvd
nvd
NVD		CVE-2026-18212
16 Sep 202615:17
–nvd
redhatcve
RedhatCVE		CVE-2026-18212
16 Sep 202613:55
–redhatcve
redhat
RedHat Linux		Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.4.16 Images Security Update
16 Sep 202615:47
–redhat
redhat
RedHat Linux		Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.6.7 Images Security Update
16 Sep 202615:46
–redhat
redhat
RedHat Linux		Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.6.7 Security Update
16 Sep 202615:45
–redhat
redhat
RedHat Linux		keycloak-services: keycloak-services: SAML Redirect DEFLATE helpers leak native zlib state
16 Sep 202615:45
–redhat
redhat
RedHat Linux		Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.4.16 Security Update
16 Sep 202615:45
–redhat
redhat
RedHat Linux		keycloak-services: keycloak-services: SAML Redirect DEFLATE helpers leak native zlib state
16 Sep 202615:45
–redhat
Rows per page
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16 Sep 2026 18:09Current
CVSS 3.17.5
CWE-401
KeycloakSAML Redirectzlib leakmemory exhaustiondenial of service
9