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CVE-2026-16105VulnerabilityPublished Updated

Bundesamt für Sicherheit in der Informationstechnik Open Source · Keycloak: Mehrere Schwachstellen

Affects Bundesamt für Sicherheit in der Informationstechnik Open SourceSource GCVE Database

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Authoritative record:CVE-2026-16105· Medium 4.9

Not known to be exploited · CVSS 4.9 Medium.

Data as of 9 Nov 2026, 14:47 UTC

CVSS 3.1 base score
4.9Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat build of Keycloak 26.6Affected–Fixed in–
Red HatRed Hat build of Keycloak 26.6Affected–Fixed in–
Red HatRed Hat build of Keycloak 26.6.7Affected–Fixed in–
Red HatRed Hat Data Grid 8Affected–Fixed in–
Red HatRed Hat JBoss Enterprise Application Platform Expansion PackAffected–Fixed in–
Red HatRed Hat Single Sign-On 7Affected–Fixed in–

AI-suggested

A fixed version, Keycloak 26.7.3, is available and should be applied promptly. Red Hat advisories recommend backing up existing installations before updating. No alternative mitigations or workarounds are specified. Users should upgrade to the fixed version to address all listed vulnerabilities.

Description

Multiple security vulnerabilities have been identified in Keycloak, an open-source identity and access management solution enabling single sign-on for modern applications and services. These issues include missing per-role authorization, information disclosure, privilege escalation, remote code execution, and bypasses of various security controls. The vulnerabilities affect versions prior to 26.7.3. Red Hat has released fixed versions and security advisories addressing these flaws.

References

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