CVE-2026-19729

MEDIUM 4.9

Keycloak-services: keycloak-services: incomplete fix for arbitrary filesystem path probing via keystore parameters

CVSS Score

4.9

EPSS Score

0.5%

EPSS Percentile

41th

A flaw was found in the key provider component of the keycloak-services library, which is the core engine for the Red Hat Build of Keycloak. The issue occurs because a previous fix for path probing was incomplete, allowing a realm administrator to still submit arbitrary filesystem paths as keystore parameters. This can be used to determine the existence and readability of files on the server, potentially exposing sensitive system information.

CWE	CWE-22
Vendor	red hat
Product	red hat build of keycloak 26.4
Published	Sep 9, 2026
Last Updated	Sep 16, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

Red Hat / Red Hat build of Keycloak 26.4

All versions affected

Red Hat / Red Hat build of Keycloak 26.4

All versions affected

Red Hat / Red Hat build of Keycloak 26.4

All versions affected

Red Hat / Red Hat build of Keycloak 26.4.16

All versions affected

Red Hat / Red Hat build of Keycloak 26.4.16

All versions affected

Red Hat / Red Hat build of Keycloak 26.6

All versions affected

Red Hat / Red Hat build of Keycloak 26.6

All versions affected

Red Hat / Red Hat build of Keycloak 26.6

All versions affected

Red Hat / Red Hat build of Keycloak 26.6.7

All versions affected

Red Hat / Red Hat build of Keycloak 26.6.7

All versions affected

Red Hat / Red Hat Single Sign-On 7

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68276 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68277 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68278 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68280 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-19729 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2515294

Credits

Red Hat would like to thank Audax Financial Technology for reporting this issue.