{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-84003 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-84003 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-84003 is a high-severity authentication bypass vulnerability in Microsoft Authentication Library, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-84003 and fix it if it is affected.\n\nWhat it is: CVE-2026-84003 is a high-severity authentication bypass vulnerability in Microsoft Authentication Library, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-84003 in the wild and no public exploit code.\n\nAffected product: Microsoft Authentication Library. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-84003/ (Markdown: https://insights.sbomify.com/CVE-2026-84003/index.md)","id":"CVE-2026-84003","markdown":"https://insights.sbomify.com/CVE-2026-84003/index.md","name":"CVE-2026-84003","record":{"aliases":["GHSA-gmqm-6r28-m87v"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Node.js authentication library","requires_auth":"none","summary":"An attacker can bypass authentication via capture-replay attacks in MSAL for Node.js, enabling network spoofing.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"azure\\/msal-node","vendor":"microsoft"}],"cvss":{"score":7.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-294","name":"Authentication Bypass by Capture-replay"}],"description":"Authentication bypass by capture-replay in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to perform spoofing over a network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Microsoft Authentication Library (MSAL) for Node.js Spoofing Vulnerability","id":"CVE-2026-84003","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Remote Desktop Gateway Service Information Disclosure Vulnerability","id":"CVE-2026-84007"},"packages":[],"prev":{"headline":"Windows Key Distribution Center Denial of Service Vulnerability","id":"CVE-2026-84001"},"products":["Microsoft Authentication Library"],"published":"2026-09-08","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["Microsoft"]},"summary":"An attacker can bypass authentication via capture-replay attacks in MSAL for Node.js, enabling network spoofing.","url":"https://insights.sbomify.com/CVE-2026-84003/"}