Bundesamt für Sicherheit in der Informationstechnik Open Source · Keycloak: Mehrere Schwachstellen
Affects Bundesamt für Sicherheit in der Informationstechnik Open SourceSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 4.9 Medium : upgrade to 26.4.12 when convenient.
Data as of 9 Nov 2026, 14:49 UTC
- Patch
- Available – fixed in 26.4.12
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 19 May 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
Upgrade org.keycloak/keycloak to 26.4.12.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Mavenorg.keycloak/keycloakpkg:maven/org.keycloak/keycloakOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Fixed versions of Keycloak are available: version 26.6.2 for the standalone server and 26.4.12 for container images on OpenShift. Users should back up their existing installations, including applications, configurations, and databases, before applying these updates. Applying these official fixes will mitigate the described vulnerabilities. No additional mitigation actions are indicated by the vendor advisories.
Description
Multiple security vulnerabilities have been identified in Keycloak, an open-source identity and access management solution enabling single sign-on for modern applications. These include denial of service, session fixation leading to account takeover, open redirect issues, information disclosure, unauthorized resource access, and token replay attacks. Red Hat has released fixed versions and updated container images addressing these issues. Users are advised to back up their installations and apply the updates promptly.
References
- wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1612.json (opens in a new tab)
- wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1612 (opens in a new tab)
- keycloak.org/2026/05/keycloak-2662-released (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19594 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19597 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19596 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19595 (opens in a new tab)
- keycloak.org/2026/11/keycloak-2682-released (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:95762 (opens in a new tab)