CVE-2026-40131: SAP HDI Deploy SQL Injection Vulnerability

CVE-2026-40131 Overview

CVE-2026-40131 is a SQL injection vulnerability [CWE-89] in the @sap/hdi-deploy Node.js package. The package constructs SQL queries dynamically using user-supplied input without parameterization or prepared statements. An authenticated attacker with high privileges can manipulate SELECT statements to extract data or disrupt query execution. The flaw impacts confidentiality and availability of the application but does not affect integrity. Exploitation requires local access and high privileges, limiting the attack surface to insiders or compromised privileged accounts.

Critical Impact
Authenticated high-privileged users can alter SQL SELECT statements within the @sap/hdi-deploy package, exposing sensitive data and degrading application availability.

Affected Products

SAP @sap/hdi-deploy package (Node.js HANA Deployment Infrastructure client)
SAP HANA Deployment Infrastructure (HDI) deployments using the affected package
SAP applications consuming the vulnerable @sap/hdi-deploy module

Discovery Timeline

2026-05-12 - CVE-2026-40131 published to NVD
2026-05-12 - Last updated in NVD database

Technical Details for CVE-2026-40131

Vulnerability Analysis

The @sap/hdi-deploy package handles deployment of database artifacts to SAP HANA Deployment Infrastructure (HDI) containers. The vulnerable code paths build SQL queries by concatenating user-controllable input directly into query strings. Because the package skips parameterized queries and prepared statements, an attacker can inject SQL fragments that modify the structure of SELECT statements at runtime.

Successful exploitation allows attackers to read data outside the intended query scope or trigger queries that consume excessive resources. The Common Weakness Enumeration classification is [CWE-89] (Improper Neutralization of Special Elements used in an SQL Command). The Exploit Prediction Scoring System probability is 0.006%, reflecting low likelihood of opportunistic exploitation given the local vector and high privilege requirement.

Root Cause

The root cause is the absence of input sanitization and bind variables in query construction logic within @sap/hdi-deploy. Developers concatenated identifiers or values derived from caller input into SQL strings rather than using HANA driver APIs that support parameter binding. This pattern leaves the SQL grammar exposed to attacker-controlled characters such as quotes, comments, and UNION operators.

Attack Vector

The attack requires local access (AV:L) and high privileges (PR:H), meaning an attacker must already hold an authenticated, elevated role within the deployment environment. No user interaction is needed. The attacker supplies crafted input to a deployment workflow or API surface that flows into the vulnerable query builder. The injected SQL modifies SELECT semantics, returning unintended rows or causing query failures that affect availability.

No public proof-of-concept exploit is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Technical details are available in SAP Note 3726962.

Detection Methods for CVE-2026-40131

Indicators of Compromise

Unexpected SQL syntax patterns such as inline comments (--, /*), UNION SELECT fragments, or stacked quotes in @sap/hdi-deploy invocation parameters and logs.
HDI container deployment logs showing malformed or unusually long SELECT statements originating from privileged service accounts.
HANA audit trail entries recording schema reads or row counts inconsistent with normal deployment activity.

Detection Strategies

Enable SAP HANA audit policies for SELECT operations executed by HDI deployment service users and review for anomalous query shapes.
Implement static analysis of code that consumes @sap/hdi-deploy to flag dynamic SQL construction without bind variables.
Correlate deployment job inputs with executed SQL to identify divergence between expected and actual query structure.

Monitoring Recommendations

Monitor privileged account activity invoking hdi-deploy operations and alert on deployments outside change-control windows.
Track HANA error logs for query parser failures or timeouts that may indicate injection probing.
Forward HDI deployment and HANA audit logs to a centralized SIEM for retention and correlation with identity telemetry.

How to Mitigate CVE-2026-40131

Immediate Actions Required

Apply the fixed version of @sap/hdi-deploy as referenced in SAP Note 3726962.
Restrict membership of HDI administrative roles and rotate credentials for service accounts that invoke the package.
Review recent HDI deployment logs and HANA audit trails for evidence of crafted SQL input.

Patch Information

SAP released the fix as part of the SAP Security Patch Day cycle. Refer to SAP Note 3726962 for the corrected @sap/hdi-deploy package version and to the SAP Security Patch Day portal for the full advisory bundle. Update the npm dependency in affected projects and redeploy.

Workarounds

Limit local access to systems running @sap/hdi-deploy to a minimal set of administrators until patching completes.
Enforce least-privilege roles in SAP HANA so deployment users cannot read data outside their assigned containers.
Validate and allowlist input parameters passed to deployment scripts that wrap @sap/hdi-deploy.

bash

# Update the affected package to the patched version
npm install @sap/hdi-deploy@latest --save-exact

# Verify the installed version matches the version specified in SAP Note 3726962
npm ls @sap/hdi-deploy