CVE-2026-9796
CVE-2026-9796: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.5
Medium [CVE-2026-9796] Keycloak: keycloak: privilege escalation via time-of-check to time-of-use (toctou) vulnerability
CVE-2026-9796Source published Source updated
A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N). Weakness: CWE-367. Affected Red Hat products: Red Hat build of Keycloak 26.6; Red Hat build of Keycloak 26.6.6; Red Hat Build of Keycloak. Will not fix / out of support: Red Hat Build of Keycloak. Red Hat fixing advisory: RHSA-2026:56524…
- Affected products in this advisory
- Red Hat build of Keycloak 26.6.6
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- rhbk/keycloak-operator-bundle:26.6.6-1
- rhbk/keycloak-rhel9:26.6-12
- rhbk/keycloak-rhel9-operator:26.6-12
- rhbk-keycloak-rhel9/rhbk-keycloak-rhel9
2 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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