CVE-2026-17048: Exposure of Sensitive Information to an Unauthorized Actor in Red Hat Red Hat build of Keycloak 26.6
A vulnerability in the Keycloak Admin REST API allows delegated administrators with view-only permissions to retrieve actual rotated client secrets stored in a secure vault, instead of placeholder values. This flaw results from improper boundary enforcement when processing requests for these secrets. The issue affects the Red Hat build of Keycloak and has a CVSS score of 5.5, indicating medium severity. Red Hat has released security updates in version 26.6.6 to address this and other related vulnerabilities.
AI Analysis
Technical Summary
CVE-2026-17048 is a vulnerability in the Keycloak Admin REST API used for managing security realms and clients. The flaw occurs due to improper boundary enforcement when handling requests for rotated client secrets stored in a secure vault. As a result, a delegated administrator with only view permissions can access the actual resolved secret rather than the vault placeholder, exposing sensitive credentials. Red Hat has issued security advisories RHSA-2026:56523 and RHSA-2026:56524, releasing Keycloak version 26.6.6 with fixes for this vulnerability among others.
Potential Impact
The vulnerability leads to the exposure of sensitive client secrets to delegated administrators who should only have view-only permissions. This unauthorized disclosure can compromise the confidentiality of credentials used for authentication and authorization within Keycloak-managed security realms and clients. The CVSS 3.1 base score of 5.5 reflects a medium severity impact with high confidentiality impact, low integrity impact, and no availability impact.
Mitigation Recommendations
Red Hat has released fixed versions of the Red Hat build of Keycloak in version 26.6.6, available as standalone packages and container images for OpenShift. Users should update to Keycloak 26.6.6 or later to remediate this vulnerability. Before applying the update, back up existing installations, including applications, configuration files, and databases. No other mitigation or workaround is indicated in the vendor advisories.
CVE-2026-17048: Exposure of Sensitive Information to an Unauthorized Actor in Red Hat Red Hat build of Keycloak 26.6
Description
A vulnerability in the Keycloak Admin REST API allows delegated administrators with view-only permissions to retrieve actual rotated client secrets stored in a secure vault, instead of placeholder values. This flaw results from improper boundary enforcement when processing requests for these secrets. The issue affects the Red Hat build of Keycloak and has a CVSS score of 5.5, indicating medium severity. Red Hat has released security updates in version 26.6.6 to address this and other related vulnerabilities.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17048 is a vulnerability in the Keycloak Admin REST API used for managing security realms and clients. The flaw occurs due to improper boundary enforcement when handling requests for rotated client secrets stored in a secure vault. As a result, a delegated administrator with only view permissions can access the actual resolved secret rather than the vault placeholder, exposing sensitive credentials. Red Hat has issued security advisories RHSA-2026:56523 and RHSA-2026:56524, releasing Keycloak version 26.6.6 with fixes for this vulnerability among others.
Potential Impact
The vulnerability leads to the exposure of sensitive client secrets to delegated administrators who should only have view-only permissions. This unauthorized disclosure can compromise the confidentiality of credentials used for authentication and authorization within Keycloak-managed security realms and clients. The CVSS 3.1 base score of 5.5 reflects a medium severity impact with high confidentiality impact, low integrity impact, and no availability impact.
Mitigation Recommendations
Red Hat has released fixed versions of the Red Hat build of Keycloak in version 26.6.6, available as standalone packages and container images for OpenShift. Users should update to Keycloak 26.6.6 or later to remediate this vulnerability. Before applying the update, back up existing installations, including applications, configuration files, and databases. No other mitigation or workaround is indicated in the vendor advisories.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-p3wj-5684-x596
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-17048"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Patch Information
Threat ID: 6a85b4c9acd9273b492528e4
Added to database: 08/19/2026, 13:51:05 UTC
Last enriched: 08/19/2026, 14:44:55 UTC
Last updated: 08/19/2026, 22:52:10 UTC
Views: 3
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