{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-93282 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-93282 is a high-severity missing authorization vulnerability in Linux, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-93282 and fix it if it is affected.\n\nWhat it is: CVE-2026-93282 is a high-severity missing authorization vulnerability in Linux, published on 24 Sep 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-2026-93282 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2026-93282/ (Markdown: https://insights.sbomify.com/CVE-2026-93282/index.md)","id":"CVE-2026-93282","markdown":"https://insights.sbomify.com/CVE-2026-93282/index.md","name":"CVE-2026-93282","record":{"aliases":["AZL-103583","BELL-CVE-2026-93282","DEBIAN-CVE-2026-93282","GHSA-7xq8-4f3j-v3g7","UBUNTU-CVE-2026-93282"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel SMB server","requires_auth":"low_privilege","summary":"Flawed access control checks in ksmbd allow unauthorized file access or privilege escalation by mishandling Authenticated Users ACEs and maximal access calculations.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix maximum allowed access checks\n\nThe DACL permission check looks for an ACE matching the current user and\nfalls back to the Everyone ACE. It does not consider an Authenticated\nUsers ACE, even though an authenticated session is a member of that\nwell-known group.\n\nAs a result, opening a file whose access is granted through S-1-5-11 can\nincorrectly fail with STATUS_ACCESS_DENIED. Treat an Authenticated Users\nACE as a fallback entry alongside Everyone.\n\nThe maximal access calculation also combines access masks from every ACE,\nregardless of whether its SID applies to the current user. This can grant\nrights belonging to an unrelated principal. Process only ACEs applying to\nthe user, Everyone, or Authenticated Users, and accumulate allowed and\ndenied masks in ACL order. Preserve explicitly requested access bits so\nthey are validated against the resulting maximal mask.\n\nWhen ACCESS_SYSTEM_SECURITY is denied, report STATUS_PRIVILEGE_NOT_HELD\ninstead of the generic STATUS_ACCESS_DENIED. Access to the system ACL\nrequires a security privilege that ksmbd does not grant.\n\nFor regular files, include FILE_EXECUTE in maximal access when the client\nrequested GENERIC_EXECUTE and the DACL grants the complete file-read set.\nKeep a direct FILE_EXECUTE request subject to the explicit DACL bit. This\nmatches the POSIX file ACL mapping without broadening specific execute\nrequests.\n\nDo not replace rights from an applicable NT ACE with a POSIX ACL entry.\nThe POSIX ACL is only a fallback when no user, Everyone, or Authenticated\nUsers ACE applies; otherwise it can incorrectly broaden the stored DACL.\n\nThis fixes smb2.maximum_allowed.maximum_allowed.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"ksmbd: fix maximum allowed access checks","id":"CVE-2026-93282","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"i3c: master: Fix device_register() error path","id":"CVE-2026-93283"},"packages":[],"prev":{"headline":"wifi: rtw89: fix HE extended capability length check","id":"CVE-2026-93281"},"products":["Linux"],"published":"2026-09-24","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Linux"]},"summary":"Flawed access control checks in ksmbd allow unauthorized file access or privilege escalation by mishandling Authenticated Users ACEs and maximal access calculations.","url":"https://insights.sbomify.com/CVE-2026-93282/"}