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VulnerabilityPublished Updated

CVE-2026-95503: CWE-347

Source GCVE Database

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Authoritative record:CVE-2026-95503· Medium 6.8

Not known to be exploited · CVSS 6.8 Medium : update Red Hat Single Sign-On 7 when convenient.

Data as of 6 Nov 2026, 14:03 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.16.8
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Sep 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 6 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat build of Keycloak 26.6.8keycloak/rhbk-openshift-rhel9Affected–Fixed in–
Red Hat build of Keycloak 26.6.8keycloak-servicesAffected–Fixed in–
Red Hat build of Keycloak 26.6.8rhbk/keycloak-rhel9Affected–Fixed in–
Red Hat Single Sign-On 7keycloak-servicesAffected–Fixed in–

AI-suggested

Red Hat has released an updated build of Keycloak (version 26.6.8) that addresses multiple security issues. Users should upgrade to Keycloak 26.6.8 or later to remediate this vulnerability. No alternative mitigations or workarounds are specified in the vendor advisory.

Description

A vulnerability in the Kerberos federation provider of Keycloak allows an attacker on the same network to spoof the Key Distribution Center (KDC) when Kerberos password authentication is used without SPNEGO. This flaw enables bypassing the authentication process and potentially gaining unauthorized access to user accounts.

References

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