{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43096 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-43096 is a medium-severity denial of service vulnerability in Linux kernel, published on 6 May 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-2026-43096 and fix it if it is affected.\n\nWhat it is: CVE-2026-43096 is a medium-severity denial of service vulnerability in Linux kernel, published on 6 May 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-2026-43096 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-2026-43096/ (Markdown: https://insights.sbomify.com/CVE-2026-43096/index.md)","id":"CVE-2026-43096","markdown":"https://insights.sbomify.com/CVE-2026-43096/index.md","name":"CVE-2026-43096","record":{"aliases":["DEBIAN-CVE-2026-43096","GHSA-6g6j-j4qf-ch65","UBUNTU-CVE-2026-43096"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A malicious guest can cause an infinite fault loop in the Linux kernel's mshv driver, leading to host resource exhaustion and denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmshv: Fix infinite fault loop on permission-denied GPA intercepts\n\nPrevent infinite fault loops when guests access memory regions without\nproper permissions. Currently, mshv_handle_gpa_intercept() attempts to\nremap pages for all faults on movable memory regions, regardless of\nwhether the access type is permitted. When a guest writes to a read-only\nregion, the remap succeeds but the region remains read-only, causing\nimmediate re-fault and spinning the vCPU indefinitely.\n\nValidate intercept access type against region permissions before\nattempting remaps. Reject writes to non-writable regions and executes to\nnon-executable regions early, returning false to let the VMM handle the\nintercept appropriately.\n\nThis also closes a potential DoS vector where malicious guests could\nintentionally trigger these fault loops to consume host resources.","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":"mshv: Fix infinite fault loop on permission-denied GPA intercepts","id":"CVE-2026-43096","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"PCI: hv: Fix double ida_free in hv_pci_probe error path","id":"CVE-2026-43097"},"packages":[],"prev":{"headline":"ASoC: SDCA: Fix errors in IRQ cleanup","id":"CVE-2026-43095"},"products":["Linux"],"published":"2026-05-06","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A malicious guest can cause an infinite fault loop in the Linux kernel's mshv driver, leading to host resource exhaustion and denial of service.","url":"https://insights.sbomify.com/CVE-2026-43096/"}