{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-74564 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-74564 is a high-severity vulnerability in Linux, published on 15 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-2026-74564 and fix it if it is affected.\n\nWhat it is: CVE-2026-74564 is a high-severity vulnerability in Linux, published on 15 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-2026-74564 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-2026-74564/ (Markdown: https://insights.sbomify.com/CVE-2026-74564/index.md)","id":"CVE-2026-74564","markdown":"https://insights.sbomify.com/CVE-2026-74564/index.md","name":"CVE-2026-74564","record":{"aliases":["AZL-96564","BELL-CVE-2026-74564","DEBIAN-CVE-2026-74564","GHSA-mhj7-jjgw-7gmc","UBUNTU-CVE-2026-74564"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel netfilter","requires_auth":"low_privilege","summary":"A missing validation in the Linux kernel netfilter hashlimit module allows uninitialized memory access, potentially causing a system crash.","user_interaction":"not_required","vuln_class":"null_dereference"},"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\nnetfilter: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH\n\nThe XT_HASHLIMIT_RATE_MATCH flag mode changes the semantics of the\ndsthash_ent structure which represents an entry in the hashtable.  There\nis a union area which uses a different layout to express the rate match\nmode.\n\nUpdate .checkentry path to validate the XT_HASHLIMIT_RATE_MATCH mode\nflag is requested by two or more different rules that refer to the same\nhashtable. Otherwise, uninitialized access to the burst field in the\nunion is possible.\n\nReject the use of the XT_HASHLIMIT_RATE_MATCH mode flag if set on by\nrevision less than 3 too.","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: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH","id":"CVE-2026-74564","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"netfilter: nf_tables: make nft_object rhltable per table","id":"CVE-2026-74565"},"packages":[],"prev":{"headline":"rds: tcp: hold the RCU lock across ipv6_chk_addr() in rds_tcp_laddr_check()","id":"CVE-2026-74563"},"products":["Linux"],"published":"2026-08-15","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["Linux"]},"summary":"A missing validation in the Linux kernel netfilter hashlimit module allows uninitialized memory access, potentially causing a system crash.","url":"https://insights.sbomify.com/CVE-2026-74564/"}