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CVE-2026-96453

Red Hat build of Keycloak 26.4 · Vulnerability

CVSS 3.1 8.0 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 6 Nov 2026 19:02:40 UTC. Read the latest advisory.

cve-program · CVE-2026-96453

Published

A flaw was found in the Keycloak Admin CLI kcadm tool, which is used by administrators to manage Keycloak servers from the command line. When a custom truststore is provided to verify the server identity, the tool incorrectly accepts any self-signed certificate as long as the hostname matches. This allows a network attacker to impersonate the Keycloak server, steal administrative credentials, and perform unauthorized management actions.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-96453

Published

Org.keycloak/keycloak-admin-cli: keycloak-admin-cli: kcadm custom truststore accepts arbitrary self-signed certificates

A flaw was found in the Keycloak Admin CLI kcadm tool, which is used by administrators to manage Keycloak servers from the command line. When a custom truststore is provided to verify the server identity, the tool incorrectly accepts any self-signed certificate as long as the hostname matches. This allows a network attacker to impersonate the Keycloak server, steal administrative credentials, and perform unauthorized management actions.

Source published
5 Nov 2026 17:15:42 UTC
Source modified
6 Nov 2026 17:12:36 UTC
Saved here
6 Nov 2026 19:02:40 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 8.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

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Sources read 15 Nov 15:52 UTC · 256 of 275 readable · 251 fully read · documentation 469/469 current

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