Red Hat Enhancement Advisory: Red Hat build of Keycloak 26.4.2 Enhancement Update
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 5.0 Medium.
Data as of 30 Oct 2026, 21:51 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 5.0 |
|---|
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Feb 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 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat build of Keycloak 26.4.2 | Affected– | Fixed in– |
| Red Hat Build of Keycloakrhbk/keycloak-rhel9 | Affected– | Fixed in– |
AI-suggested
The Red Hat advisory does not mention any fixes or patches available for this vulnerability. It advises ensuring all previously released errata relevant to the system have been applied before applying this update.
Description
CVE-2025-11537 is a vulnerability identified in the Red Hat build of Keycloak 26.4.2, a standalone server providing authentication and single sign-on capabilities. The advisory does not provide specific details about the nature of the vulnerability or its impact. No fix or patch information is included in the advisory, and no known exploits are reported in the wild.