GitHub Advisoryadvisory · npm
GHSA-xcx6-jx8p-x3h5 MSAL Node authorization code flow may disclose parameters to an attacker-controlled endpoint
HIGH
Official page ↗
- Aliases
- CVE-2026-109461
- Ecosystem
- npm
- Packages
- @azure/msal-node
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-346
- Reviewed
- 2026-10-23
Affected packages
• npm @azure/msal-node: >= 5.0.0-beta.0, < 7.1.0 → fixed in 7.1.0
Description
Impact
Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network. This affects the auth_code flow.
Patches
Version 7.1.0 and higher are patched.
Workarounds
Ensure you pass in only the auth_code to to acquireTokenByCode
Related
Alias · CVE (1)
- CVE-2026-109461 Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over… vulnerability
Weakness · CWE (1)
- CWE-346 Origin Validation Error weakness
References
- https://github.com/AzureAD/microsoft-authentication-library-for-js/security/advisories/GHSA-xcx6-jx8p-x3h5 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-109461 advisory
- https://github.com/AzureAD/microsoft-authentication-library-for-js/pull/8901 web
- https://github.com/AzureAD/microsoft-authentication-library-for-js/commit/f550958586475dbfeb1cd44be14a2d653728850e web
- https://github.com/AzureAD/microsoft-authentication-library-for-js package
- https://github.com/AzureAD/microsoft-authentication-library-for-js/releases/tag/msal-node-v7.1.0 web
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109461 web