Origin Validation Error Affecting @azure/msal-node package, versions >=5.0.0-beta.0 <7.1.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-AZUREMSALNODE-21689163
- published24 Oct 2026
- disclosed23 Oct 2026
- creditUnknown
Introduced: 23 Oct 2026
NewCVE-2026-109461 (opens in a new tab)How to fix?
Upgrade @azure/msal-node to version 7.1.0 or higher.
Overview
@azure/msal-node is a Microsoft Authentication Library for Node
Affected versions of this package are vulnerable to Origin Validation Error via the acquireTokenByCode method in ConfidentialClientApplication, which fails to sanitize the caller-supplied authCodePayload before use. An attacker who can influence the authorization code response payload can inject arbitrary fields - such as a manipulated code or nonce - into the token exchange request, potentially bypassing security checks tied to those values and gaining unauthorized access to protected resources.