AEGLIX vulnerability intelligence
CVE-2026-4636
HIGH · CVSS 8.1 · Modified
Published: 2026-04-02 · Updated: 2026-10-26 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:18:34.250486+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions.
Patch review priority
Assess exposure and vendor guidance
- No higher-priority signal is available in the current stored evidence.
FIRST EPSS: 0.43% · percentile 36.9 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 8.1 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-551
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:26.2:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:26.2.15:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:26.4.11:*:*:*:text-only:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://access.redhat.com/errata/RHSA-2026:6475
Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6476
Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6477
Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6478
Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-4636
Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2450251
Exploit · Issue Tracking · Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6475
Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6476
Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6477
Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6478
Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-4636
Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2450251
Exploit · Issue Tracking · Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4636.json