{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-90118 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-90118 is a high-severity memory corruption vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-90118 and fix it if it is affected.\n\nWhat it is: CVE-2026-90118 is a high-severity memory corruption vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-90118 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-2026-90118/ (Markdown: https://insights.sbomify.com/CVE-2026-90118/index.md)","id":"CVE-2026-90118","markdown":"https://insights.sbomify.com/CVE-2026-90118/index.md","name":"CVE-2026-90118","record":{"aliases":["DEBIAN-CVE-2026-90118","GHSA-fvx8-6m5h-cx99","UBUNTU-CVE-2026-90118"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"An off-by-one error in the Linux kernel NTFS driver allows out-of-bounds writes when reading corrupted compressed data, potentially leading to code execution or crashes.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: fix off-by-one page overflow in ntfs_decompress()\n\nThe per-token range check in ntfs_decompress() uses\n\n\tif (cb \u003e= cb_sb_end || dp_addr \u003e dp_sb_end)\n\t\tbreak;\n\nso dp_addr == dp_sb_end falls through to the symbol copy\n`*dp_addr++ = *cb++`, writing one byte past the destination page.  Since\nNTFS_SB_SIZE == PAGE_SIZE the destination is a single page, so the byte\nlands in the adjacent page, and *dest_ofs is left one past the sub-block\nend (the later `*dest_ofs \u0026= ~PAGE_MASK` then yields 1, not 0, so the page\nis never finalized and later sub-blocks keep writing further past it).  A\ncorrupted compressed $DATA attribute thus produces a bounded run of\nout-of-bounds writes when the file is read.\n\nBreak as soon as dp_addr reaches dp_sb_end; a full sub-block still\ncompletes, as its final copy advances dp_addr to exactly dp_sb_end.","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":"ntfs: fix off-by-one page overflow in ntfs_decompress()","id":"CVE-2026-90118","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"ALSA: ice1712: Fix the card leak at probe error with the auto-cleanup","id":"CVE-2026-90119"},"packages":[],"prev":{"headline":"ntfs: validate usa_ofs before preserving the update sequence number","id":"CVE-2026-90117"},"products":["Linux"],"published":"2026-09-17","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":"2026-10-19","vendors":["Linux"]},"summary":"An off-by-one error in the Linux kernel NTFS driver allows out-of-bounds writes when reading corrupted compressed data, potentially leading to code execution or crashes.","url":"https://insights.sbomify.com/CVE-2026-90118/"}