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6.8 Medium

A flaw was found in the Admin REST API of Keycloak, an identity and access management solution.

CVE-2026-19688

A flaw was found in the Admin REST API of Keycloak, an identity and access management solution. The Admin API fails to verify the intended audience of bearer tokens during authentication. This issue allows an attacker who operates a client within a realm to capture an administrator's access token and reuse it to perform unauthorized administrative actions, potentially leading to full realm compromise.

Assessment

CVSS
6.8 (v3.1)
Severity
Medium
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
6 November 2026
Last updated
6 November 2026
Assigner
redhat

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

At the source

References

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