Red Hat Security Advisory: Red Hat build of Keycloak 26.4.6 Images Security Update
Affects Red Hat keycloakSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium : upgrade Red Hat keycloak to 26.4.6 when convenient.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 26.4.6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 25 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade org.keycloak/keycloak to 26.4.6.
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
Red Hat has released updated images and packages for Red Hat build of Keycloak 26.4.6 that fix this vulnerability. Users should back up their existing installations, including applications, configuration files, and databases, before applying the update. Applying the updated Keycloak 26.4.6 images or packages from Red Hat Customer Portal will remediate the issue.
Description
A moderate severity vulnerability (CVE-2025-13467) affecting Red Hat build of Keycloak 26.4.6 involves deserialization of untrusted data in the LDAP User Federation component. This issue could allow an attacker to exploit unsafe deserialization processes. Red Hat has released updated container images and packages for Keycloak 26.4.6 to address this vulnerability. Users are advised to back up their installations before applying the update.
References
- access.redhat.com/errata/RHSA-2025:22090 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_22090.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2025:22091 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_22091.json (opens in a new tab)