{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-83947 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-83947 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-83947 is a high-severity missing authorization vulnerability in Microsoft Azure Event Grid System, published on 8 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-83947 and fix it if it is affected.\n\nWhat it is: CVE-2026-83947 is a high-severity missing authorization vulnerability in Microsoft Azure Event Grid System, published on 8 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-83947 in the wild and no public exploit code.\n\nAffected product: Microsoft Azure Event Grid System. 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-2026-83947/ (Markdown: https://insights.sbomify.com/CVE-2026-83947/index.md)","id":"CVE-2026-83947","markdown":"https://insights.sbomify.com/CVE-2026-83947/index.md","name":"CVE-2026-83947","record":{"aliases":["GHSA-hf67-p98c-9g49"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Azure Event Grid","requires_auth":"low_privilege","summary":"An authorized attacker can perform spoofing attacks against Azure Event Grid due to missing authorization checks.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"azure_event_grid","vendor":"microsoft"}],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"Missing authorization in Azure Event Grid allows an authorized 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 Event Grid Spoofing Vulnerability","id":"CVE-2026-83947","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft Azure CLI Remote Code Execution Vulnerability","id":"CVE-2026-83948"},"packages":[],"prev":{"headline":"Azure Portal Spoofing Vulnerability","id":"CVE-2026-83946"},"products":["Azure Event Grid System"],"published":"2026-10-08","related":[{"cvss_score":7.3,"headline":"Azure Event Grid System Elevation of Privilege Vulnerability","id":"CVE-2025-59273","kev_date_added":null,"published":"2025-10-23"}],"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":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Microsoft"]},"summary":"An authorized attacker can perform spoofing attacks against Azure Event Grid due to missing authorization checks.","url":"https://insights.sbomify.com/CVE-2026-83947/"}