{"id":"GHSA-xcx6-jx8p-x3h5","summary":"MSAL Node authorization code flow may disclose parameters to an attacker-controlled endpoint","details":"### Impact\n\nOrigin 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.\n\n### Patches\n\nVersion 7.1.0 and higher are patched.\n\n### Workarounds\n\nEnsure you pass in only the auth_code to to acquireTokenByCode","aliases":["CVE-2026-109461"],"modified":"2026-10-23T22:30:05.010413241Z","published":"2026-10-23T22:16:44Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-10-23T22:16:44Z","nvd_published_at":"2026-10-16T18:17:31Z","cwe_ids":["CWE-346"],"severity":"HIGH"},"references":[{"type":"WEB","url":"https://github.com/AzureAD/microsoft-authentication-library-for-js/security/advisories/GHSA-xcx6-jx8p-x3h5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109461"},{"type":"WEB","url":"https://github.com/AzureAD/microsoft-authentication-library-for-js/pull/8901"},{"type":"WEB","url":"https://github.com/AzureAD/microsoft-authentication-library-for-js/commit/f550958586475dbfeb1cd44be14a2d653728850e"},{"type":"PACKAGE","url":"https://github.com/AzureAD/microsoft-authentication-library-for-js"},{"type":"WEB","url":"https://github.com/AzureAD/microsoft-authentication-library-for-js/releases/tag/msal-node-v7.1.0"},{"type":"WEB","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109461"}],"affected":[{"package":{"name":"@azure/msal-node","ecosystem":"npm","purl":"pkg:npm/%40azure/msal-node"},"ranges":[{"type":"SEMVER","events":[{"introduced":"5.0.0-beta.0"},{"fixed":"7.1.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-xcx6-jx8p-x3h5/GHSA-xcx6-jx8p-x3h5.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}