HIGH 7.5 npm
MSAL Node authorization code flow may disclose parameters to an attacker-controlled endpoint
GHSA-xcx6-jx8p-x3h5 · CVE-2026-109461
Published · Modified
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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
References
- WEB https://github.com/AzureAD/microsoft-authentication-library-for-js/security/advisories/GHSA-xcx6-jx8p-x3h5
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-109461
- WEB https://github.com/AzureAD/microsoft-authentication-library-for-js/pull/8901
- WEB https://github.com/AzureAD/microsoft-authentication-library-for-js/commit/f550958586475dbfeb1cd44be14a2d653728850e
- PACKAGE https://github.com/AzureAD/microsoft-authentication-library-for-js
- WEB 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
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