GHSA-xcx6-jx8p-x3h5
MSAL Node authorization code flow may disclose parameters to an attacker-controlled endpoint
At a glance
- Published
- Updated
- CVE
- CVE-2026-109461
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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
Affected packages
| Package | Versions |
|---|---|
| npm · @azure/msal-node | introduced 5.0.0-beta.0, fixed 7.1.0 |
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
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |