CVE-2026-4629: Red Hat build of Keycloak 26.4 · Incorrect Privilege Assignment
Affects Red Hat build of Keycloak 26.4Source CVE Database V5
Not known to be exploited · CVSS 6.5 Medium.
Data as of 12 Nov 2026, 23:24 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 6.5 |
|---|
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Jun 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 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat build of Keycloak 26.4rhbk/keycloak-operator-bundle | Affected– | Fixed in– |
| Red Hat build of Keycloak 26.4rhbk/keycloak-rhel9 | Affected– | Fixed in– |
| Red Hat build of Keycloak 26.4rhbk/keycloak-rhel9-operator | Affected– | Fixed in– |
| Red Hat build of Keycloak 26.4.14rhbk/keycloak-rhel9 | Affected– | Fixed in– |
| Red HatRed Hat build of Keycloak 26.6.5 | Affected– | Fixed in– |
AI-suggested
Currently, Red Hat states that no mitigation meeting their criteria for ease of use, applicability, or stability is available. Users should monitor Red Hat advisories for updates and consider limiting the assignment of the 'manage-clients' permission to trusted administrators only. Applying the upcoming security update to Red Hat build of Keycloak 26.4.14 when available is recommended.
Description
A flaw was found in Keycloak. A highly privileged user with `manage-clients` permission can exploit this vulnerability by injecting a hardcoded role mapper into any client. This action allows the user to bypass existing scope restrictions and inject the `realm-admin` role into generated tokens, resulting in privilege escalation and full administrative access to the realm.
References
- access.redhat.com/security/cve/CVE-2026-4629 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2450244 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:50846 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:50847 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:50848 (opens in a new tab)