Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
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.
Sun, 02 Aug 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat build Of Keycloak
Redhat data Grid Redhat jboss Enterprise Application Platform Expansion Pack Redhat single Sign On |
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| Vendors & Products |
Redhat build Of Keycloak
Redhat data Grid Redhat jboss Enterprise Application Platform Expansion Pack Redhat single Sign On |
Sat, 01 Aug 2026 00:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Sat, 01 Aug 2026 00:15:00 +0000
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| References |
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| Metrics |
threat_severity
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threat_severity
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Fri, 31 Jul 2026 07:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in the group policy evaluation logic of Keycloak, an identity and access management solution. When a group policy is set to extend permissions to child groups, the system incorrectly uses a simple text-based prefix check to verify group membership. This allows a user who belongs to a different group with a similar starting name to bypass security checks and gain unauthorized access to administrative functions or protected resources. | |
| Title | Keycloak-services: keycloak-services: group policy extendchildren matches sibling group path prefixes | |
| First Time appeared |
Redhat
Redhat build Keycloak Redhat jboss Data Grid Redhat jbosseapxp Redhat red Hat Single Sign On |
|
| Weaknesses | CWE-863 | |
| CPEs | cpe:/a:redhat:build_keycloak: cpe:/a:redhat:jboss_data_grid:8 cpe:/a:redhat:jbosseapxp cpe:/a:redhat:red_hat_single_sign_on:7 |
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| Vendors & Products |
Redhat
Redhat build Keycloak Redhat jboss Data Grid Redhat jbosseapxp Redhat red Hat Single Sign On |
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| References |
| |
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-07-31T23:20:33.733Z
Reserved: 2026-07-29T07:49:19.596Z
Link: CVE-2026-18203
Updated: 2026-07-31T23:20:29.361Z
Status : Analyzed
Published: 2026-07-31T08:16:27.010
Modified: 2026-08-07T14:56:33.153
Link: CVE-2026-18203
OpenCVE Enrichment
Updated: 2026-08-04T11:30:07Z