{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98793 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98793 is a denial of service vulnerability in Linux, published on 18 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-98793 and fix it if it is affected.\n\nWhat it is: CVE-2026-98793 is a denial of service vulnerability in Linux, published on 18 Oct 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-2026-98793 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-2026-98793/ (Markdown: https://insights.sbomify.com/CVE-2026-98793/index.md)","id":"CVE-2026-98793","markdown":"https://insights.sbomify.com/CVE-2026-98793/index.md","name":"CVE-2026-98793","record":{"aliases":["AZL-109290","BELL-CVE-2026-98793","DEBIAN-CVE-2026-98793","GHSA-g33v-6845-q9px","UBUNTU-CVE-2026-98793"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A missing validation in the Linux kernel netfilter BPF NAT handling allows a low-privileged user to trigger a kernel warning and potential crash, causing denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bpf: reject invalid NAT manipulation types\n\nAs bpf_ct_set_nat_info() is not validating the NAT manipulation type a\nwrong value can be passed directly to nf_nat_setup_info(). This triggers\nthe WARN_ON() at nf_nat_setup_info() and if panic_on_warn isn't set,\nthen IPS_SRC_NAT_DONE is set without adding nat_bysource and conntrack\ncleanup tries to unlink an uninitialized hlist node.\n\nFix this by checking that NAT manipulation type is correct before\ncalling nf_nat_setup_info(). In addition, if the WARN_ON is hit, return\nNF_DROP instead of continuing with the processing to avoid similar\nsituations in the future.","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":"netfilter: bpf: reject invalid NAT manipulation types","id":"CVE-2026-98793","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"ipvs: filter some flags received in the backup server","id":"CVE-2026-98794"},"packages":[],"prev":{"headline":"netfilter: flowtable: generalize pending status bit","id":"CVE-2026-98792"},"products":["Linux"],"published":"2026-10-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Linux"]},"summary":"A missing validation in the Linux kernel netfilter BPF NAT handling allows a low-privileged user to trigger a kernel warning and potential crash, causing denial of service.","url":"https://insights.sbomify.com/CVE-2026-98793/"}