{"answers":{"affected":"It affects 2 products.","exploited":"Yes. Attackers have exploited CVE-2026-21514 in the wild since at least 10 Feb 2026.","fix":"No fix has been published for CVE-2026-21514 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 Mar 2026.","what":"CVE-2026-21514 is a high-severity vulnerability in Microsoft 365 Apps, published on 10 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-21514 and fix it if it is affected.\n\nWhat it is: CVE-2026-21514 is a high-severity vulnerability in Microsoft 365 Apps, published on 10 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2026-21514 in the wild since at least 10 Feb 2026.\n\nAffected product: Microsoft 365 Apps. 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-2026-21514/ (Markdown: https://insights.sbomify.com/CVE-2026-21514/index.md)","id":"CVE-2026-21514","markdown":"https://insights.sbomify.com/CVE-2026-21514/index.md","name":"CVE-2026-21514","record":{"aliases":["GHSA-cjj3-m869-748g"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Microsoft Office Word","requires_auth":"none","summary":"An attacker can bypass security features in Microsoft Word by exploiting reliance on untrusted inputs, requiring a patch to mitigate.","user_interaction":"required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"365_apps","vendor":"microsoft"},{"product":"office_long_term_servicing_channel","vendor":"microsoft"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-807","name":"Reliance on Untrusted Inputs in a Security Decision"}],"description":"Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-05-04","github_poc":1,"max_poc_stars":7,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-05-04T17:38:14Z","kind":"github_poc","ref":"https://github.com/ChaitanyaHaritash/CVE-2026-21514_CVE-2026-21510","stars":7,"title":"CVE-2026-21514 \u0026 CVE-2026-21510 (Because MS-Office Fascinates me)"}],"tier":"exploited"},"has_fix":null,"headline":"Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision","id":"CVE-2026-21514","indexable":true,"kev":{"dateAdded":"2026-02-10","dueDate":"2026-03-03","knownRansomwareCampaignUse":"Unknown","product":"Office","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:365_apps","products":["microsoft:365_apps","microsoft:office_long_term_servicing_channel"],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Azure IoT Central Elevation of Privilege Vulnerability","id":"CVE-2026-21515"},"packages":[],"prev":{"headline":"Microsoft MSHTML Framework Protection Mechanism Failure","id":"CVE-2026-21513"},"products":["Microsoft 365 Apps for Enterprise","Microsoft Office LTSC 2021","Microsoft Office LTSC 2024","Microsoft Office LTSC for Mac 2021","Microsoft Office LTSC for Mac 2024"],"published":"2026-02-10","related":[{"cvss_score":9.8,"headline":"Microsoft Outlook Improper Input Validation","id":"CVE-2024-21413","kev_date_added":"2025-02-06","published":"2024-02-13"},{"cvss_score":9.8,"headline":"Microsoft Office Outlook Privilege Escalation","id":"CVE-2023-23397","kev_date_added":"2023-03-14","published":"2023-03-14"},{"cvss_score":8.8,"headline":"Microsoft Project Remote Code Execution Vulnerability","id":"CVE-2024-38189","kev_date_added":"2024-08-13","published":"2024-08-13"},{"cvss_score":8.8,"headline":"Microsoft Outlook Security Feature Bypass","id":"CVE-2023-35311","kev_date_added":"2023-07-11","published":"2023-07-11"},{"cvss_score":7.8,"headline":"Microsoft Office Security Feature Bypass","id":"CVE-2026-21509","kev_date_added":"2026-01-26","published":"2026-01-26"},{"cvss_score":7.8,"headline":"Microsoft Excel Security Feature Bypass","id":"CVE-2021-42292","kev_date_added":"2021-11-17","published":"2021-11-10"}],"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-19","vendors":["Microsoft"]},"summary":"An attacker can bypass security features in Microsoft Word by exploiting reliance on untrusted inputs, requiring a patch to mitigate.","url":"https://insights.sbomify.com/CVE-2026-21514/"}