Vulnerability details
CVE-2026-15573
Red Hat Data Grid 8Red Hat Single Sign-On 7
Keycloak-services: keycloak-services: authorization bypass via unnormalized uri matching in pathmatcher
CVSS 3.1
8.1High
Official description
A flaw was found in Keycloak's Authorization Services. The component responsible for matching request paths to security policies (PathMatcher) does not properly normalize URIs before comparison. By adding extra characters like a trailing slash or matrix parameters to a URL, an attacker can trick the system into applying a less restrictive security policy than intended. This allows an authenticated user to access administrative or restricted areas they should not have permission to see.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (redhat) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Red Hat | Red Hat Data Grid 8 | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Single Sign-On 7 | All | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://access.redhat.com/errata/RHSA-2026:50846 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:50847 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:50848 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:50849 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-15573 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2499593 issue-trackingx_refsource_REDHAT
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Details
- Published
- 2026-08-05
- Last updated
- 2026-08-31
- State
- Published
- Assigner (CNA)
- redhat
Exploit prediction (EPSS)
0.45%
Probability of exploitation in 30 days
39.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-551Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
- CWE-178Improper Handling of Case Sensitivity