CVE-2026-48136: Check Point RBAC Bypass Vulnerability

CVE-2026-48136 Overview

CVE-2026-48136 is a Role-Based Access Control (RBAC) bypass affecting Check Point Multi-Domain Management when the Compliance feature is enabled. An authenticated administrator with read-write access to one Management Domain (Customer Management Add-on, or CMA) can modify stored metadata associated with Compliance Best Practices in a separate Management Domain where the administrator holds no permissions. The vulnerability is categorized under [CWE-89] (SQL Injection), indicating the metadata modification is achieved through improper neutralization of input used in a SQL query.

Critical Impact

Cross-domain tampering of Compliance Best Practice metadata enables an attacker with limited domain access to influence compliance posture data outside their authorized scope.

Affected Products

• Check Point Multi-Domain Management (Provider-1 / MDS) with the Compliance blade enabled
• Customer Management Add-on (CMA) instances managed under affected Multi-Domain deployments
• Refer to the Check Point Security Advisory sk184992 for exact affected versions and fix availability

Discovery Timeline

• 2026-05-26 - CVE-2026-48136 published to NVD
• 2026-05-26 - Last updated in NVD database

Technical Details for CVE-2026-48136

Vulnerability Analysis

The flaw resides in how the Multi-Domain Management platform processes Compliance Best Practice metadata requests. When the Compliance blade is active, an administrator authenticated to a single CMA can issue requests that operate on metadata belonging to other Management Domains. The platform fails to enforce domain-scoped authorization on the affected metadata write path, breaking the tenant isolation model that Multi-Domain Management is designed to provide.

The [CWE-89] classification indicates that user-controlled input reaches a backend SQL statement without adequate parameterization or escaping. Crafted input alters the SQL query semantics so the underlying database modifies rows belonging to domains outside the attacker's authority. The attack vector is network-based but requires high privileges (an existing administrator account) and high attack complexity.

Root Cause

The root cause is improper neutralization of special elements in a SQL command combined with missing domain-context enforcement during metadata updates. The Compliance subsystem trusts the domain identifier or row selector supplied during metadata write operations rather than deriving and validating it from the authenticated session's CMA scope.

Attack Vector

An attacker first obtains valid read-write administrative credentials on any single CMA. From that authenticated session, the attacker submits crafted Compliance metadata modification requests targeting Best Practice records associated with a different Management Domain. Because the SQL layer accepts the manipulated identifiers, the write operation succeeds across the tenant boundary, resulting in low-impact tampering with confidentiality, integrity, and availability of Compliance data in the foreign domain.

No verified public proof-of-concept is available. See the Check Point Security Advisory sk184992 for technical details from the vendor.

Detection Methods for CVE-2026-48136

Indicators of Compromise

• Unexpected modifications to Compliance Best Practice metadata in Management Domains where the acting administrator has no assigned permissions
• Audit log entries showing Compliance metadata writes whose target domain does not match the authenticated administrator's CMA scope
• Database-level changes to Compliance tables occurring outside scheduled compliance assessments or change windows

Detection Strategies

• Correlate administrator session identity and assigned CMA scope against the target domain of each Compliance write operation, alerting on mismatches
• Review SmartConsole and management server audit trails for Compliance Best Practice edits, focusing on cross-domain anomalies
• Inspect database query logs on the management server for parameter values containing SQL meta-characters in Compliance-related statements

Monitoring Recommendations

• Forward Multi-Domain Management audit logs to a centralized analytics platform and build alerting on cross-domain administrative actions
• Baseline normal Compliance Best Practice editing activity per administrator, then alert on deviations in frequency or target domain
• Monitor privileged account use on CMAs and flag sessions that interact with Compliance APIs immediately after authentication

How to Mitigate CVE-2026-48136

Immediate Actions Required

• Apply the fix referenced in the Check Point Security Advisory sk184992 on all Multi-Domain Management servers running with Compliance enabled
• Inventory administrative accounts on every CMA and remove read-write privileges that are not strictly required
• Review recent Compliance Best Practice changes and revert any modifications that cannot be tied to an authorized administrator and domain

Patch Information

Check Point has published guidance and fix availability through advisory sk184992. Consult the vendor advisory for the specific Multi-Domain Management versions, jumbo hotfix takes, and upgrade paths that remediate CVE-2026-48136.

Workarounds

• Where patching is not immediately feasible, disable the Compliance blade on Multi-Domain Management until the fix is applied, if operational requirements allow
• Restrict administrative access to Multi-Domain Management interfaces to a hardened jump-host network segment and enforce multi-factor authentication for all CMA administrators
• Tighten RBAC role definitions so that administrators receive only the minimum domain scope and permissions required for their duties

# Configuration example: list administrator permission profiles for review
# Run from the MDS expert shell to enumerate administrators and their domain scope
mdsenv
cpmiquerybin attr "" administrators "" -a __name__,permissions_profile,permissions_scope