Advisory severityHigh8.1Red Hat Linux

High [CVE-2026-15573] Authorization bypass via unnormalized URI matching in PathMatcher

This high-severity Red Hat Linux advisory covers CVE-2026-15573 affecting Red Hat build of Keycloak 26.4, Red Hat build of Keycloak 26.6, Red Hat Data Grid 8.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-15573 Source published Aug 5, 2026Source updated Aug 5, 2026

VulniPulse record published Aug 5, 2026Record updated Aug 21, 2026

CVE-2026-15573

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

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Summary

Authorization bypass via unnormalized URI matching in PathMatcher. Red Hat rates this important (CVSS 8.1).

Red Hat lists fixing advisory RHSA-2026:50848 with package rhbk/keycloak-rhel9:26.6-11, rhbk/keycloak-operator-bundle:26.4.14-1, rhbk/keycloak-rhel9, keycloak-services.

Affected products named by the advisory: Red Hat build of Keycloak 26.4; Red Hat build of Keycloak 26.6; Red Hat Data Grid 8; Red Hat Single Sign-On 7.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

rhbk/keycloak-rhel9:26.6-11
rhbk/keycloak-operator-bundle:26.4.14-1
rhbk/keycloak-rhel9
keycloak-services
rhbk-openshift-rhel9/rhbk-openshift-rhel9
rhbk/keycloak-rhel9-operator:26.6-11
rhbk/keycloak-rhel9-operator:26.4-22
rhbk/keycloak-operator-bundle:26.6.5-1
rhbk/keycloak-rhel9:26.4-22
RHSA-2026:50848

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation

Upgrade to a fixed release: rhbk/keycloak-rhel9:26.6-11, rhbk/keycloak-operator-bundle:26.4.14-1, rhbk/keycloak-rhel9, keycloak-services, rhbk-openshift-rhel9/rhbk-openshift-rhel9, rhbk/keycloak-rhel9-operator:26.6-11. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-15573NVD CVE.org MITRE

Discussion(0)

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