{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-40379 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-40379 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-40379 is a critical vulnerability in Microsoft Entra, published on 12 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-40379 and fix it if it is affected.\n\nWhat it is: CVE-2026-40379 is a critical vulnerability in Microsoft Entra, published on 12 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-40379 in the wild and no public exploit code.\n\nAffected product: Microsoft Entra. 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-2026-40379/ (Markdown: https://insights.sbomify.com/CVE-2026-40379/index.md)","id":"CVE-2026-40379","markdown":"https://insights.sbomify.com/CVE-2026-40379/index.md","name":"CVE-2026-40379","record":{"aliases":["GHSA-xq38-4286-vwhm"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Azure Entra ID","requires_auth":"none","summary":"An unauthorized attacker can exploit sensitive information exposure in Azure Entra ID to perform network spoofing, requiring a vendor patch.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"entra_id","vendor":"microsoft"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"Exposure of sensitive information to an unauthorized actor in Azure Entra ID 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":null,"headline":"Azure Entra ID Spoofing Vulnerability","id":"CVE-2026-40379","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Volume Manager Extension Driver Remote Code Execution Vulnerability","id":"CVE-2026-40380"},"packages":[],"prev":{"headline":"Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability","id":"CVE-2026-40378"},"products":["Microsoft Entra"],"published":"2026-05-12","related":[{"cvss_score":10,"headline":"Microsoft Entra ID Remote Code Execution Vulnerability","id":"CVE-2026-69836","kev_date_added":null,"published":"2026-08-20"},{"cvss_score":10,"headline":"Microsoft Entra ID Elevation of Privilege Vulnerability","id":"CVE-2026-42901","kev_date_added":null,"published":"2026-05-22"},{"cvss_score":10,"headline":"Microsoft Entra ID Entitlement Management Spoofing Vulnerability","id":"CVE-2026-35431","kev_date_added":null,"published":"2026-04-23"},{"cvss_score":10,"headline":"Azure Entra ID Elevation of Privilege Vulnerability","id":"CVE-2025-55241","kev_date_added":null,"published":"2025-09-04"},{"cvss_score":9.9,"headline":"Entra ID Elevation of Privilege Vulnerability","id":"CVE-2026-83941","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":9.9,"headline":"Microsoft Entra ID Elevation of Privilege Vulnerability","id":"CVE-2026-69851","kev_date_added":null,"published":"2026-08-20"},{"cvss_score":9.8,"headline":"Azure Entra ID Elevation of Privilege Vulnerability","id":"CVE-2025-59246","kev_date_added":null,"published":"2025-10-09"}],"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":"2026-08-10","vendors":["Microsoft"]},"summary":"An unauthorized attacker can exploit sensitive information exposure in Azure Entra ID to perform network spoofing, requiring a vendor patch.","url":"https://insights.sbomify.com/CVE-2026-40379/"}