← Vulnerability feed

Vulnerability record · CVE-2026-15945 · published 16 July 2026

CVE-2026-15945: Redhat build of keycloak insecure direct object reference vulnerability

Redhat · Build Of Keycloak

A flaw was found in the group search functionality of the Keycloak server's administrative API. When Fine-Grained Admin Permissions (FGAP) v2 is enabled, a delegated administrator can bypass access restrictions to view parent groups they are not authorized to see. By searching for a child group they have permission to view, the system incorrectly returns the full details of the parent group in the response, leading to the disclosure of sensitive group attributes and configuration.

2.7 CVSS 3.1 Low EPSS 0.35% · top 74.1% CWE-639 · Insecure direct object reference
2.7CVSS 3.1 base score
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
4References
16 Sep 2026Last modified by NVD

Description

A flaw was found in the group search functionality of the Keycloak server's administrative API. When Fine-Grained Admin Permissions (FGAP) v2 is enabled, a delegated administrator can bypass access restrictions to view parent groups they are not authorized to see. By searching for a child group they have permission to view, the system incorrectly returns the full details of the parent group in the response, leading to the disclosure of sensitive group attributes and configuration.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:68277
https://access.redhat.com/errata/RHSA-2026:68278
https://access.redhat.com/security/cve/CVE-2026-15945 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2501302 Issue TrackingVendor Advisory

Track CVE-2026-15945 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2023-44487HTTP/2 Rapid Reset stream cancellation denial of serviceThe HTTP/2 protocol permits a client to cancel many streams quickly, and the server's handling of those resets consumes disproportionate resources. T…KEVEPSS 100%analysed9.8CVE-2026-16442Redhat build of keycloak origin validation error vulnerabilityA flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication. The issue occurs beca…EPSS 0.31%9.8CVE-2022-4039Redhat single sign-on incorrect default permissions vulnerabilityA flaw was found in Red Hat Single Sign-On for OpenShift container images, which are configured with an unsecured management interface enabled. This …EPSS 0.79%9.8CVE-2021-31917Infinispan-server-rest improper authentication vulnerabilityA flaw was found in Red Hat DataGrid 8.x (8.0.0, 8.0.1, 8.1.0 and 8.1.1) and Infinispan (10.0.0 through 12.0.0). An attacker could bypass authenticat…EPSS 1.3%9.8CVE-2019-10212Redhat undertow sensitive information in log file vulnerabilityA flaw was found in, all under 2.0.20, in the Undertow DEBUG log for io.undertow.request.security. If enabled, an attacker could abuse this flaw to o…EPSS 1.9%9.8CVE-2019-14379Fasterxml jackson-databind prototype pollution vulnerabilitySubTypeValidator.java in FasterXML jackson-databind before 2.9.9.2 mishandles default typing when ehcache is used (because of net.sf.ehcache.transact…EPSS 8.1%9.8CVE-2015-7501Red Hat JBoss Java deserialization allows remote command executionMultiple Red Hat JBoss products deserialize untrusted Java objects and, through the Apache Commons Collections library, allow remote attackers to exe…EPSS 86%analysed9.6CVE-2025-12543Redhat build of apache camel improper input validation vulnerabilityA flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to pr…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2026-15945), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.