{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-31414 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-31414 is a critical vulnerability in Linux kernel, published on 13 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-31414 and fix it if it is affected.\n\nWhat it is: CVE-2026-31414 is a critical vulnerability in Linux kernel, published on 13 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-31414 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2026-31414/ (Markdown: https://insights.sbomify.com/CVE-2026-31414/index.md)","id":"CVE-2026-31414","markdown":"https://insights.sbomify.com/CVE-2026-31414/index.md","name":"CVE-2026-31414","record":{"aliases":["AZL-82706","BELL-CVE-2026-31414","DEBIAN-CVE-2026-31414","GHSA-79r8-qx2r-f755","ROOT-OS-DEBIAN-11-CVE-2026-31414","ROOT-OS-DEBIAN-12-CVE-2026-31414","ROOT-OS-DEBIAN-13-CVE-2026-31414","ROOT-OS-UBUNTU-2204-CVE-2026-31414","ROOT-OS-UBUNTU-2404-CVE-2026-31414","UBUNTU-CVE-2026-31414"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A null pointer dereference in the Linux kernel netfilter subsystem allows local attackers to cause a denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_expect: use expect-\u003ehelper\n\nUse expect-\u003ehelper in ctnetlink and /proc to dump the helper name.\nUsing nfct_help() without holding a reference to the master conntrack\nis unsafe.\n\nUse exp-\u003emaster-\u003ehelper in ctnetlink path if userspace does not provide\nan explicit helper when creating an expectation to retain the existing\nbehaviour. The ctnetlink expectation path holds the reference on the\nmaster conntrack and nf_conntrack_expect lock and the nfnetlink glue\npath refers to the master ct that is attached to the skb.","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: nf_conntrack_expect: use expect-\u003ehelper","id":"CVE-2026-31414","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"ipv6: avoid overflows in ip6_datagram_send_ctl()","id":"CVE-2026-31415"},"packages":[],"prev":{"headline":"bpf: Fix unsound scalar forking in maybe_fork_scalars() for BPF_OR","id":"CVE-2026-31413"},"products":["Linux"],"published":"2026-04-13","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel netfilter subsystem allows local attackers to cause a denial of service.","url":"https://insights.sbomify.com/CVE-2026-31414/"}