{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-31729 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-31729 is a high-severity memory corruption vulnerability in Linux kernel, published on 1 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-2026-31729 and fix it if it is affected.\n\nWhat it is: CVE-2026-31729 is a high-severity memory corruption vulnerability in Linux kernel, published on 1 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-2026-31729 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-2026-31729/ (Markdown: https://insights.sbomify.com/CVE-2026-31729/index.md)","id":"CVE-2026-31729","markdown":"https://insights.sbomify.com/CVE-2026-31729/index.md","name":"CVE-2026-31729","record":{"aliases":["BELL-CVE-2026-31729","DEBIAN-CVE-2026-31729","GHSA-77q3-374v-8gp2","ROOT-OS-DEBIAN-11-CVE-2026-31729","ROOT-OS-DEBIAN-12-CVE-2026-31729","ROOT-OS-UBUNTU-2204-CVE-2026-31729","ROOT-OS-UBUNTU-2404-CVE-2026-31729","UBUNTU-CVE-2026-31729"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel USB driver","requires_auth":"low_privilege","summary":"A malicious USB device can trigger an out-of-bounds array access in the Linux kernel UCSI driver, potentially leading to code execution or system crash.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","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-129","name":"Improper Validation of Array Index"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: validate connector number in ucsi_notify_common()\n\nThe connector number extracted from CCI via UCSI_CCI_CONNECTOR() is a\n7-bit field (0-127) that is used to index into the connector array in\nucsi_connector_change(). However, the array is only allocated for the\nnumber of connectors reported by the device (typically 2-4 entries).\n\nA malicious or malfunctioning device could report an out-of-range\nconnector number in the CCI, causing an out-of-bounds array access in\nucsi_connector_change().\n\nAdd a bounds check in ucsi_notify_common(), the central point where CCI\nis parsed after arriving from hardware, so that bogus connector numbers\nare rejected before they propagate further.","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":"usb: typec: ucsi: validate connector number in ucsi_notify_common()","id":"CVE-2026-31729","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"misc: fastrpc: possible double-free of cctx-\u003eremote_heap","id":"CVE-2026-31730"},"packages":[],"prev":{"headline":"usb: gadget: u_ether: Fix race between gether_disconnect and eth_stop","id":"CVE-2026-31728"},"products":["Linux"],"published":"2026-05-01","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 USB device can trigger an out-of-bounds array access in the Linux kernel UCSI driver, potentially leading to code execution or system crash.","url":"https://insights.sbomify.com/CVE-2026-31729/"}