{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80675 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80675 is a high-severity 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-2026-80675 and fix it if it is affected.\n\nWhat it is: CVE-2026-80675 is a high-severity 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-2026-80675 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-2026-80675/ (Markdown: https://insights.sbomify.com/CVE-2026-80675/index.md)","id":"CVE-2026-80675","markdown":"https://insights.sbomify.com/CVE-2026-80675/index.md","name":"CVE-2026-80675","record":{"aliases":["BELL-CVE-2026-80675","DEBIAN-CVE-2026-80675","GHSA-82gv-94cv-gr24","UBUNTU-CVE-2026-80675"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel BPF","requires_auth":"low_privilege","summary":"A flaw in the Linux kernel's signed BPF loader allows bypassing integrity checks if map exclusivity is not enforced, potentially allowing stale data validation.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/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\nlibbpf: Reject non-exclusive metadata maps in the signed loader\n\nThe loader verifies map-\u003esha against the metadata hash in its\ninstructions. map-\u003esha is calculated when BPF_OBJ_GET_INFO_BY_FD is\ncalled on the frozen map.\n\nWhile the map is frozen, the /signed loader/ must also ensure the map\nis exclusive, as, without exclusivity (which a hostile host could just\nomit when loading the loader), another BPF program with map access can\nmutate the contents afterwards, so the check passes on stale data.\n\nWith the extra check as part of the signed loader, it now refuses to\nmove on with map-\u003esha validation if the host set it up wrongly.","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":"libbpf: Reject non-exclusive metadata maps in the signed loader","id":"CVE-2026-80675","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Drivers: hv: vmbus: use generic driver_override infrastructure","id":"CVE-2026-80676"},"packages":[],"prev":{"headline":"ntfs: validate resident attribute lists and harden the validator","id":"CVE-2026-80674"},"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 signed BPF loader allows bypassing integrity checks if map exclusivity is not enforced, potentially allowing stale data validation.","url":"https://insights.sbomify.com/CVE-2026-80675/"}