{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2026-65400 in the wild since at least 18 Aug 2026.","fix":"No fix has been published for CVE-2026-65400 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 21 Aug 2026.","what":"CVE-2026-65400 is a critical authentication bypass vulnerability in Apple Macos, published on 6 Aug 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-2026-65400 and fix it if it is affected.\n\nWhat it is: CVE-2026-65400 is a critical authentication bypass vulnerability in Apple Macos, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2026-65400 in the wild since at least 18 Aug 2026.\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-2026-65400/ (Markdown: https://insights.sbomify.com/CVE-2026-65400/index.md)","id":"CVE-2026-65400","markdown":"https://insights.sbomify.com/CVE-2026-65400/index.md","name":"CVE-2026-65400","record":{"aliases":["GHSA-cwph-f4w9-f4wq"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"macOS Screen Sharing","requires_auth":"none","summary":"An attacker on the network can authenticate to Screen Sharing without valid credentials due to an authentication issue in macOS.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apple","cpe":[{"product":"macos","vendor":"apple"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-08-18","github_poc":3,"max_poc_stars":10,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-08-21T18:22:37Z","kind":"github_poc","ref":"https://github.com/panchocosil/CVE-2026-65400-poc","stars":10,"title":"Read-only PoC for CVE-2026-65400 — macOS Screen Sharing (screensharingd) pre-auth SRP bypass giving root file read. Patched in macOS 26.6.1 / 15.7.9 / 14.8.9."},{"date":"2026-08-22T08:54:26Z","kind":"github_poc","ref":"https://github.com/acheong08/CVE-2026-65400","stars":10,"title":"Apple MacOS Screen Sharing Arbitrary File read/write -\u003e RCE"},{"date":"2026-08-18T01:45:39Z","kind":"github_poc","ref":"https://github.com/HORKimhab/CVE-2026-65400","stars":3,"title":"CVE-2026-65400"}],"tier":"exploited"},"has_fix":null,"headline":"Apple macOS Improper Authentication","id":"CVE-2026-65400","indexable":true,"kev":{"dateAdded":"2026-08-18","dueDate":"2026-08-21","knownRansomwareCampaignUse":"Unknown","product":"macOS","requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","vendorProject":"Apple","vulnerabilityName":"Apple macOS Improper Authentication Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"apple:macos","products":["apple:macos"],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Race condition in macOS","id":"CVE-2026-65401"},"packages":[],"prev":{"headline":"Security feature bypass in iOS and iPadOS","id":"CVE-2026-65399"},"products":["macOS"],"published":"2026-08-06","related":[{"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":"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":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-26","vendors":["Apple"]},"summary":"An attacker on the network can authenticate to Screen Sharing without valid credentials due to an authentication issue in macOS.","url":"https://insights.sbomify.com/CVE-2026-65400/"}