{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109411 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-109411 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 28 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-109411 and fix it if it is affected.\n\nWhat it is: CVE-2026-109411 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 28 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-109411 in the wild and no public exploit code.\n\nAffected product: Red Hat Enterprise Linux 10. 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-2026-109411/ (Markdown: https://insights.sbomify.com/CVE-2026-109411/index.md)","id":"CVE-2026-109411","markdown":"https://insights.sbomify.com/CVE-2026-109411/index.md","name":"CVE-2026-109411","record":{"aliases":["DEBIAN-CVE-2026-109411","GHSA-pwp9-3h93-h2x8","UBUNTU-CVE-2026-109411","openSUSE-SU-2026:12334-1"],"analysis":null,"analysis_generated_by":null,"assigner":"redhat","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":[{"id":"CWE-178","name":"Improper Handling of Case Sensitivity"}],"description":"An access control bypass flaw was identified in Samba's vfs_ceph_rgw module in it's openat() function. An authenticated user can bypass access controls to read or overwrite restricted files on shares configured with the experimental vfs_ceph_rgw module. When a client requests an existing file using mismatched character casing, the module fails to perform a case-insensitive lookup correctly, causing the server to treat the operation as creating a new file. As a result, the server skips standard permission checks on the existing file, allowing the attacker to access or overwrite sensitive data owned by other users.","ecosystems":["openSUSE:Tumbleweed"],"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":"Samba: access control bypass via vfs_ceph_rgw case-insensitive open","id":"CVE-2026-109411","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":5,"next":{"headline":"Information disclosure in Neurons Patch for Intune","id":"CVE-2026-109412"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["4.25.1+git.476.bfc358351cb-1.1"],"introduced":["0"],"last_affected":[],"package":"samba","purl":"pkg:rpm/opensuse/samba\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:12334-1"}],"prev":{"headline":"macrozheng mall mall-admin/mall-portal moneyInfo OmsOrderServiceImpl.updateMoneyInfo calculation","id":"CVE-2026-109410"},"products":["Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 6","Red Hat Enterprise Linux 7","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 9","Red Hat OpenShift Container Platform 4","Samba"],"published":"2026-10-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":["Red Hat","Samba"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-109411/"}