Is there a public exploit for CVE-2026-118959?

No public exploit for CVE-2026-118959 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-118959?

CVE-2026-118959 scores CVSS 5.4 (v3.1), rated medium.

5.4 Medium

A flaw was found in the required action provider mechanism of Keycloak.

CVE-2026-118959

A flaw was found in the required action provider mechanism of Keycloak. The issue occurs when an authorization request includes the kcaction query parameter set to a mandatory action already assigned to the user, such as profile verification or terms and conditions. Due to incorrect handling of application-initiated actions, Keycloak may skip these mandatory challenges and issue an authorization code. This can allow a user to bypass administrative requirements and gain access to the application without completing necessary profile updates or agreeing to terms.

Assessment

CVSS: 5.4 (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: 30 October 2026
Last updated: 3 November 2026
Weakness: CWE-287
Assigner: secalert@redhat.com

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

At the source

References

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