{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-53000 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-53000 is a high-severity use after free vulnerability in Linux kernel, published on 24 Jun 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-2026-53000 and fix it if it is affected.\n\nWhat it is: CVE-2026-53000 is a high-severity use after free vulnerability in Linux kernel, published on 24 Jun 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-2026-53000 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-2026-53000/ (Markdown: https://insights.sbomify.com/CVE-2026-53000/index.md)","id":"CVE-2026-53000","markdown":"https://insights.sbomify.com/CVE-2026-53000/index.md","name":"CVE-2026-53000","record":{"aliases":["AZL-90372","BELL-CVE-2026-53000","DEBIAN-CVE-2026-53000","GHSA-6794-4vqv-w8qg","ROOT-OS-DEBIAN-12-CVE-2026-53000","ROOT-OS-DEBIAN-13-CVE-2026-53000","ROOT-OS-UBUNTU-2204-CVE-2026-53000","ROOT-OS-UBUNTU-2404-CVE-2026-53000","UBUNTU-CVE-2026-53000"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel netfilter","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel netfilter NAT module allows attackers to potentially execute code or escalate privileges via improper memory release.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-763","name":"Release of Invalid Pointer or Reference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nat: use kfree_rcu to release ops\n\nFlorian Westphal says:\n\n\"Historically this is not an issue, even for normal base hooks: the data\npath doesn't use the original nf_hook_ops that are used to register the\ncallbacks.\n\nHowever, in v5.14 I added the ability to dump the active netfilter\nhooks from userspace.\n\nThis code will peek back into the nf_hook_ops that are available\nat the tail of the pointer-array blob used by the datapath.\n\nThe nat hooks are special, because they are called indirectly from\nthe central nat dispatcher hook. They are currently invisible to\nthe nfnl hook dump subsystem though.\n\nBut once that changes the nat ops structures have to be deferred too.\"\n\nUpdate nf_nat_register_fn() to deal with partial exposition of the hooks\nfrom error path which can be also an issue for nfnetlink_hook.","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: nat: use kfree_rcu to release ops","id":"CVE-2026-53000","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel","redhat:enterprise_linux"],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"netfilter: xtables: restrict several matches to inet family","id":"CVE-2026-53001"},"packages":[],"prev":{"headline":"netfilter: nfnetlink_osf: fix out-of-bounds read on option matching","id":"CVE-2026-52999"},"products":["Linux"],"published":"2026-06-24","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel netfilter NAT module allows attackers to potentially execute code or escalate privileges via improper memory release.","url":"https://insights.sbomify.com/CVE-2026-53000/"}