CVE-2026-9083
Description
A flaw was found in Keycloak. A realm administrator with the "manage-realm" role can exploit this vulnerability by submitting an arbitrary filesystem path as a keystore parameter when creating a key provider component. This allows the administrator to probe arbitrary filesystem paths, determining which files exist and are readable by the Keycloak process. This information disclosure could be used to identify high-value targets for follow-on attacks.
Statement
Medium: This flaw in Keycloak allows a highly privileged realm administrator with the "manage-realm" role to perform arbitrary filesystem path probing. By submitting a crafted keystore path, an authenticated attacker can determine the existence and readability of files on the Keycloak server, potentially identifying high-value targets for further attacks. Exploitation requires an attacker to possess the "manage-realm" role, which is a high-level administrative permission.
Mitigation
Ensure that only highly trusted administrators are granted the "manage-realm" role within Keycloak. This role provides extensive administrative privileges, including the ability to exploit this vulnerability for filesystem probing. Regularly review and audit users assigned to this role to minimize the attack surface.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.9 | N/A | 4.9 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | High | N/A | High |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | High | N/A | High |
| Integrity Impact | None | N/A | None |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Acknowledgements
Red Hat would like to thank Swapnil Paliwal & Security Team (AxiomCode) for reporting this issue.
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