{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-46244 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-46244 is a critical vulnerability in Linux kernel, published on 3 Jun 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-2026-46244 and fix it if it is affected.\n\nWhat it is: CVE-2026-46244 is a critical vulnerability in Linux kernel, published on 3 Jun 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-2026-46244 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-2026-46244/ (Markdown: https://insights.sbomify.com/CVE-2026-46244/index.md)","id":"CVE-2026-46244","markdown":"https://insights.sbomify.com/CVE-2026-46244/index.md","name":"CVE-2026-46244","record":{"aliases":["AZL-89357","BELL-CVE-2026-46244","DEBIAN-CVE-2026-46244","GHSA-fgx8-r5g7-5cr9","ROOT-OS-DEBIAN-13-CVE-2026-46244","ROOT-OS-UBUNTU-2404-CVE-2026-46244","UBUNTU-CVE-2026-46244"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel netfilter","requires_auth":"none","summary":"A logic error in Linux kernel netfilter allows attackers to bypass firewall rules by forging transport headers in inner IPv6 packets.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-823","name":"Use of Out-of-range Pointer Offset"},{"id":"CWE-682","name":"Incorrect Calculation"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_inner: Fix IPv6 inner_thoff desync\n\nIn nft_inner_parse_l2l3(), when processing inner IPv6 packets,\nipv6_find_hdr() correctly computes the transport header offset\ntraversing all extension headers, but the result is immediately\noverwritten with nhoff + sizeof(_ip6h) (40 bytes), which only\naccounts for the IPv6 base header. This creates a desync between\ninner_thoff (wrong — points to extension header start) and l4proto\n(correct — e.g., IPPROTO_TCP), enabling transport header forgery\nand potential firewall bypass. This issue affects stable versions\nfrom Linux 6.2.\n\nFor comparison, the normal (non-inner) IPv6 path correctly\npreserves ipv6_find_hdr()'s result. Removing the incorrect overwrite\nensures that ipv6_find_hdr()'s calculated transport header offset is\npreserved, thereby fixing the desynchronization.","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: nft_inner: Fix IPv6 inner_thoff desync","id":"CVE-2026-46244","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"drm/amd/display: Fix dc_link NULL handling in HPD init","id":"CVE-2026-46245"},"packages":[],"prev":{"headline":"smb: client: reject userspace cifs.spnego descriptions","id":"CVE-2026-46243"},"products":["Linux"],"published":"2026-06-03","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 logic error in Linux kernel netfilter allows attackers to bypass firewall rules by forging transport headers in inner IPv6 packets.","url":"https://insights.sbomify.com/CVE-2026-46244/"}