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CVE-2026-15943VulnerabilityPublished 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-2026-15943· Medium 5.5

Not known to be exploited · CVSS 5.5 Medium · fixed in 26.7.3 : update Bundesamt für Sicherheit in der Informationstechnik Open Source when convenient.

Data as of 9 Nov 2026, 14:48 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.15.5
Patch
Available – fixed in 26.7.3
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 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 Hat build of Keycloak 26.6rhbk/keycloak-operator-bundleAffected–Fixed in–
Red Hat build of Keycloak 26.6rhbk/keycloak-rhel9Affected–Fixed in–
Red Hat build of Keycloak 26.6rhbk/keycloak-rhel9-operatorAffected–Fixed in–
Red Hat build of Keycloak 26.6.8keycloak-servicesAffected–Fixed in–
Red Hat build of Keycloak 26.6.8rhbk-keycloak-rhel9/rhbk-keycloak-rhel9Affected–Fixed in–
Red Hat build of Keycloak 26.6.8rhbk-openshift-rhel9/rhbk-openshift-rhel9Affected–Fixed in–

AI-suggested

Users should upgrade to Keycloak version 26.7.3 or later to remediate the identified vulnerabilities. Since a fixed version is available, applying this official fix is the recommended mitigation.

Description

Multiple 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 affect all versions prior to 26.7.3. A fix is available in version 26.7.3.

References

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