{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-66313 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-66313 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66313 is a medium-severity vulnerability in Microsoft Edge Chromium, published on 3 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-66313 and fix it if it is affected.\n\nWhat it is: CVE-2026-66313 is a medium-severity vulnerability in Microsoft Edge Chromium, published on 3 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-66313 in the wild and no public exploit code.\n\nAffected product: Microsoft Edge Chromium. 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-2026-66313/ (Markdown: https://insights.sbomify.com/CVE-2026-66313/index.md)","id":"CVE-2026-66313","markdown":"https://insights.sbomify.com/CVE-2026-66313/index.md","name":"CVE-2026-66313","record":{"aliases":["GHSA-8q78-vm89-wh64"],"analysis":{"component_type":"browser","fix_type":"patch","impacts":["data_modify","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Microsoft Edge browser","requires_auth":"none","summary":"An origin validation error in Microsoft Edge allows local attackers to tamper with data, bypassing security controls.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"edge_chromium","vendor":"microsoft"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-346","name":"Origin Validation Error"}],"description":"Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.","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":"Microsoft Edge (Chromium-based) Tampering Vulnerability","id":"CVE-2026-66313","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:edge_chromium","products":["microsoft:edge_chromium"],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft Edge (Chromium-based) Information Disclosure Vulnerability","id":"CVE-2026-66314"},"packages":[],"prev":{"headline":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","id":"CVE-2026-66312"},"products":["Microsoft Edge (Chromium-based)"],"published":"2026-08-03","related":[{"cvss_score":9.6,"headline":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","id":"CVE-2024-21326","kev_date_added":null,"published":"2024-01-26"},{"cvss_score":9.6,"headline":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","id":"CVE-2023-35618","kev_date_added":null,"published":"2023-12-07"},{"cvss_score":9.6,"headline":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","id":"CVE-2023-36735","kev_date_added":null,"published":"2023-09-15"},{"cvss_score":9.6,"headline":"Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability","id":"CVE-2022-33649","kev_date_added":null,"published":"2022-08-09"},{"cvss_score":9,"headline":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","id":"CVE-2026-58289","kev_date_added":null,"published":"2026-07-03"},{"cvss_score":8.8,"headline":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","id":"CVE-2026-69486","kev_date_added":null,"published":"2026-09-15"},{"cvss_score":8.8,"headline":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","id":"CVE-2026-85893","kev_date_added":null,"published":"2026-09-15"}],"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":"2026-10-28","vendors":["Microsoft"]},"summary":"An origin validation error in Microsoft Edge allows local attackers to tamper with data, bypassing security controls.","url":"https://insights.sbomify.com/CVE-2026-66313/"}