{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-85879 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-85879 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-85879 is a high-severity vulnerability in Microsoft Windows Subsystem for Linux (WSL2), published on 13 Oct 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-2026-85879 and fix it if it is affected.\n\nWhat it is: CVE-2026-85879 is a high-severity vulnerability in Microsoft Windows Subsystem for Linux (WSL2), published on 13 Oct 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-2026-85879 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows Subsystem for Linux (WSL2). 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-2026-85879/ (Markdown: https://insights.sbomify.com/CVE-2026-85879/index.md)","id":"CVE-2026-85879","markdown":"https://insights.sbomify.com/CVE-2026-85879/index.md","name":"CVE-2026-85879","record":{"aliases":["GHSA-7xvg-wj2h-x3rp"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Windows Subsystem for Linux","requires_auth":"low_privilege","summary":"A race condition in Windows Subsystem for Linux allows local attackers to elevate privileges.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_subsystem_for_linux","vendor":"microsoft"}],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition"}],"description":"Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to elevate privileges 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":"Windows Subsystem for Linux Elevation of Privilege Vulnerability","id":"CVE-2026-85879","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft Windows Heap-Based Buffer Overflow","id":"CVE-2026-85880"},"packages":[],"prev":{"headline":"Azure Database for PostgreSQL Elevation of Privilege Vulnerability","id":"CVE-2026-85878"},"products":["Windows Subsystem for Linux (WSL2)"],"published":"2026-10-13","related":[{"cvss_score":9.8,"headline":"Visual Studio Code WSL Extension Remote Code Execution Vulnerability","id":"CVE-2021-43907","kev_date_added":null,"published":"2021-12-15"},{"cvss_score":8.8,"headline":"Windows Subsystem for Linux GUI Remote Code Execution Vulnerability","id":"CVE-2025-62220","kev_date_added":null,"published":"2025-11-11"},{"cvss_score":7.8,"headline":"Windows Subsystem for Linux (WSL2) Kernel Elevation of Privilege Vulnerability","id":"CVE-2026-57968","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":7,"headline":"Windows Subsystem for Linux (WSL2) Kernel Elevation of Privilege Vulnerability","id":"CVE-2025-53788","kev_date_added":null,"published":"2025-08-12"},{"cvss_score":6.5,"headline":"Windows Subsystem for Linux Information Disclosure Vulnerability","id":"CVE-2026-96206","kev_date_added":null,"published":"2026-10-13"},{"cvss_score":6.3,"headline":"Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability","id":"CVE-2026-57973","kev_date_added":null,"published":"2026-07-14"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Microsoft"]},"summary":"A race condition in Windows Subsystem for Linux allows local attackers to elevate privileges.","url":"https://insights.sbomify.com/CVE-2026-85879/"}