{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-20639 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20639 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20639 is a high-severity vulnerability in Apple Macos, published on 25 Mar 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-2026-20639 and fix it if it is affected.\n\nWhat it is: CVE-2026-20639 is a high-severity vulnerability in Apple Macos, published on 25 Mar 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-2026-20639 in the wild and no public exploit code.\n\nAffected product: Apple Macos. 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-2026-20639/ (Markdown: https://insights.sbomify.com/CVE-2026-20639/index.md)","id":"CVE-2026-20639","markdown":"https://insights.sbomify.com/CVE-2026-20639/index.md","name":"CVE-2026-20639","record":{"aliases":["GHSA-7gg2-3r7f-v522"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"macOS","requires_auth":"none","summary":"An integer overflow in macOS allows attackers to cause heap corruption and potentially execute arbitrary code via a maliciously crafted string.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apple","cpe":[{"product":"macos","vendor":"apple"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"An integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3. Processing a maliciously crafted string may lead to heap corruption.","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":"Integer overflow in macOS","id":"CVE-2026-20639","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"apple:macos","products":["apple:macos"],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Information disclosure in iOS and iPadOS","id":"CVE-2026-20640"},"packages":[],"prev":{"headline":"Information disclosure in iOS and iPadOS","id":"CVE-2026-20638"},"products":["macOS"],"published":"2026-03-25","related":[{"cvss_score":9.8,"headline":"Apple macOS Improper Authentication","id":"CVE-2026-65400","kev_date_added":"2026-08-18","published":"2026-08-06"},{"cvss_score":10,"headline":"Security feature bypass in macOS","id":"CVE-2024-44146","kev_date_added":null,"published":"2024-09-16"},{"cvss_score":10,"headline":"Security feature bypass in macOS","id":"CVE-2024-44148","kev_date_added":null,"published":"2024-09-16"},{"cvss_score":10,"headline":"Security feature bypass in macOS","id":"CVE-2023-38586","kev_date_added":null,"published":"2023-09-26"},{"cvss_score":10,"headline":"Security feature bypass in macOS","id":"CVE-2023-40455","kev_date_added":null,"published":"2023-09-26"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-1999-0590","kev_date_added":null,"published":"2000-02-04"},{"cvss_score":9.8,"headline":"Memory corruption in macOS","id":"CVE-2026-84520","kev_date_added":null,"published":"2026-09-14"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-02","vendors":["Apple"]},"summary":"An integer overflow in macOS allows attackers to cause heap corruption and potentially execute arbitrary code via a maliciously crafted string.","url":"https://insights.sbomify.com/CVE-2026-20639/"}