{"id":"CVE-2026-109461","title":"Microsoft Authentication Library (MSAL) for Node.js Information Disclosure Vulnerability","summary":"Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network.","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-346"],"vendor":"Microsoft","product":"Microsoft Identity Client for NodeJS","affected":["identity_client_for_nodejs >= 5.0.0 < 7.1.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-16T17:32:18.910994Z"},"published":"2026-10-16","updated":"2026-10-27","sourceUpdated":"2026-10-27T21:37:12.672Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109461","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109461","label":"Microsoft Authentication Library (MSAL) for Node.js Information Disclosure Vulnerability"},{"url":"https://github.com/AzureAD/microsoft-authentication-library-for-js/security/advisories/GHSA-xcx6-jx8p-x3h5"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109461"},{"url":"https://github.com/AzureAD/microsoft-authentication-library-for-js/pull/8901"},{"url":"https://github.com/AzureAD/microsoft-authentication-library-for-js/commit/f550958586475dbfeb1cd44be14a2d653728850e"},{"url":"https://github.com/AzureAD/microsoft-authentication-library-for-js/releases/tag/msal-node-v7.1.0"},{"url":"https://github.com/advisories/GHSA-xcx6-jx8p-x3h5"}],"tags":["cve.org","ghsa","npm"],"epss":0.00361,"epssPercentile":0.29757,"aliases":["GHSA-xcx6-jx8p-x3h5"],"ecosystem":"npm","patched":["@azure/msal-node 7.1.0"],"scores":{"cna":5.9,"ghsa":7.5},"ingestedAt":"2026-10-16T18:43:08.658Z","slug":"CVE-2026-109461","body":"## Overview\n\nOrigin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network.\n\n## Affected\n\n- `identity_client_for_nodejs >= 5.0.0 < 7.1.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-109461)\n\nAffected packages:\n\n- `@azure/msal-node >= 5.0.0-beta.0, < 7.1.0`\n\nPatched in:\n\n- `@azure/msal-node 7.1.0`\n\nSource: https://github.com/advisories/GHSA-xcx6-jx8p-x3h5","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}