{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80591 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80591 is a high-severity denial of service vulnerability in Linux, published on 28 Aug 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-2026-80591 and fix it if it is affected.\n\nWhat it is: CVE-2026-80591 is a high-severity denial of service vulnerability in Linux, published on 28 Aug 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-2026-80591 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-2026-80591/ (Markdown: https://insights.sbomify.com/CVE-2026-80591/index.md)","id":"CVE-2026-80591","markdown":"https://insights.sbomify.com/CVE-2026-80591/index.md","name":"CVE-2026-80591","record":{"aliases":["BELL-CVE-2026-80591","DEBIAN-CVE-2026-80591","GHSA-4pj6-ggmx-ccvm","UBUNTU-CVE-2026-80591"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel filesystem","requires_auth":"low_privilege","summary":"A flaw in the Linux kernel's f2fs filesystem allows attackers to cause a denial of service by triggering improper handling of corrupted extended attribute entries.","user_interaction":"not_required","vuln_class":"denial_of_service"},"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:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix listxattr handling of corrupted xattr entries\n\nValidate the xattr entry before reading its fields in f2fs_listxattr().\nReturn -EFSCORRUPTED when the entry is outside the valid xattr storage\narea instead of returning a successful partial result.","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":"f2fs: fix listxattr handling of corrupted xattr entries","id":"CVE-2026-80591","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"samples/damon/mtier: fail early if address range parameters are invalid","id":"CVE-2026-80592"},"packages":[],"prev":{"headline":"inet: frags: strip GSO state from fragments before reassembly","id":"CVE-2026-80590"},"products":["Linux"],"published":"2026-08-28","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":"2026-08-29","vendors":["Linux"]},"summary":"A flaw in the Linux kernel's f2fs filesystem allows attackers to cause a denial of service by triggering improper handling of corrupted extended attribute entries.","url":"https://insights.sbomify.com/CVE-2026-80591/"}