{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-23291 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-23291 is a medium-severity use after free vulnerability in Linux kernel, published on 25 Mar 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-2026-23291 and fix it if it is affected.\n\nWhat it is: CVE-2026-23291 is a medium-severity use after free vulnerability in Linux kernel, published on 25 Mar 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-2026-23291 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-2026-23291/ (Markdown: https://insights.sbomify.com/CVE-2026-23291/index.md)","id":"CVE-2026-23291","markdown":"https://insights.sbomify.com/CVE-2026-23291/index.md","name":"CVE-2026-23291","record":{"aliases":["BELL-CVE-2026-23291","DEBIAN-CVE-2026-23291","GHSA-3m5v-fjjv-99m5","ROOT-OS-DEBIAN-11-CVE-2026-23291","ROOT-OS-DEBIAN-12-CVE-2026-23291","ROOT-OS-DEBIAN-13-CVE-2026-23291","ROOT-OS-UBUNTU-2204-CVE-2026-23291","ROOT-OS-UBUNTU-2404-CVE-2026-23291","UBUNTU-CVE-2026-23291"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel NFC driver","requires_auth":"low_privilege","summary":"A reference counting error in the Linux kernel NFC driver can lead to a use-after-free condition upon device disconnection, potentially causing a system crash.","user_interaction":"not_required","vuln_class":"use_after_free"},"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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: properly drop the usb interface reference on disconnect\n\nWhen the device is disconnected from the driver, there is a \"dangling\"\nreference count on the usb interface that was grabbed in the probe\ncallback.  Fix this up by properly dropping the reference after we are\ndone with it.","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":"nfc: pn533: properly drop the usb interface reference on disconnect","id":"CVE-2026-23291","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"scsi: target: Fix recursive locking in __configfs_open_file()","id":"CVE-2026-23292"},"packages":[],"prev":{"headline":"net: usb: pegasus: validate USB endpoints","id":"CVE-2026-23290"},"products":["Linux"],"published":"2026-03-25","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A reference counting error in the Linux kernel NFC driver can lead to a use-after-free condition upon device disconnection, potentially causing a system crash.","url":"https://insights.sbomify.com/CVE-2026-23291/"}