Bundesamt für Sicherheit in der Informationstechnik Open Source · Keycloak: Mehrere Schwachstellen
Affects Bundesamt für Sicherheit in der Informationstechnik Open SourceSource GCVE Database
Not known to be exploited · CVSS 4.9 Medium · fixed in 26.8.2 : update Bundesamt für Sicherheit in der Informationstechnik Open Source when convenient.
Data as of 9 Nov 2026, 13:02 UTC
- Patch
- Available – fixed in 26.8.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 8 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat Build of Keycloak | Affected– | Fixed in– |
| Red HatRed Hat Single Sign-On 7 | Affected– | Fixed in– |
AI-suggested
A fix is available in Keycloak version 26.8.2. Users should upgrade to this version to remediate the vulnerability. No effective mitigations other than upgrading meet Red Hat's criteria for ease of use, applicability, or stability.
Description
A vulnerability in Keycloak prior to version 26.8.2 allows a realm administrator with the read-only view-clients role to access active primary secrets of confidential clients. These secrets should be restricted but are exposed due to failure to mask sensitive credentials in specific installation provider and client registration endpoints. This exposure enables impersonation of clients and unauthorized access to associated service account permissions. The vulnerability has been fixed in version 26.8.2.
References
- wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3849.json (opens in a new tab)
- wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3849 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2547941 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2547957 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2548355 (opens in a new tab)
- access.redhat.com/security/cve/cve-2026-107604 (opens in a new tab)
- access.redhat.com/security/cve/cve-2026-107623 (opens in a new tab)
- access.redhat.com/security/cve/cve-2026-107889 (opens in a new tab)
- keycloak.org/2026/11/keycloak-2682-released (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:95761 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:95762 (opens in a new tab)