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CVE-2026-76969 — @sap/cds-mtx: Credential disclosure in...

CRITICAL

@sap/cds-mtx: Credential disclosure in multitenant applications using SAP Cloud Application Programming Model (CAP)

Published September 8, 2026Updated September 17, 2026Source: osv

Summary

@sap/cds-mtxs NPM library does not perform sufficient checks on certain functionality used in multitenant CAP applications with extensibility enabled. An unauthenticated attacker could send specially crafted requests to obtain sensitive credentials and abuse them to replace or delete tenant data. Successful exploitation can result in a high impact on availability and integrity of the application. There may also be partial impact to the confidentiality of business data.

Advisory Timeline

  • First published September 8, 2026 (34 days ago).
  • Last revised September 17, 2026 — 10 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update @sap/cds-mtxs to 3.9.7 or later
npm install @sap/cds-mtxs@3.9.7
npm
Update @sap/cds-mtxs to 2.7.7 or later
npm install @sap/cds-mtxs@2.7.7
npm
Update @sap/cds-mtxs to 1.18.4 or later
npm install @sap/cds-mtxs@1.18.4
npm
Update @sap/cds-mtxs to 4.0.3 or later
npm install @sap/cds-mtxs@4.0.3

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
@sap/cds-mtxs
npm
All versions3.9.7
@sap/cds-mtxs
npm
All versions2.7.7
@sap/cds-mtxs
npm
All versions1.18.4
@sap/cds-mtxs
npm
All versions4.0.3

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.4 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2026-76969?
@sap/cds-mtx: Credential disclosure in multitenant applications using SAP Cloud Application Programming Model (CAP) This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.4/10).
How do I check if my project is affected by CVE-2026-76969?
CVE-2026-76969 affects @sap/cds-mtxs. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-76969 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.4

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-955m-rr6m-2f9v

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