{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-46054 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-46054 is a high-severity missing authorization vulnerability in Linux kernel, published on 27 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-2026-46054 and fix it if it is affected.\n\nWhat it is: CVE-2026-46054 is a high-severity missing authorization vulnerability in Linux kernel, published on 27 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-2026-46054 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-2026-46054/ (Markdown: https://insights.sbomify.com/CVE-2026-46054/index.md)","id":"CVE-2026-46054","markdown":"https://insights.sbomify.com/CVE-2026-46054/index.md","name":"CVE-2026-46054","record":{"aliases":["ALSA-2026:27811","ALSA-2026:27812","AZL-88715","BELL-CVE-2026-46054","DEBIAN-CVE-2026-46054","GHSA-xg2q-7399-f2r3","RHSA-2026:27811","RHSA-2026:27812","RLSA-2026:27811","RLSA-2026:27812","ROOT-OS-DEBIAN-11-CVE-2026-46054","ROOT-OS-DEBIAN-12-CVE-2026-46054","ROOT-OS-DEBIAN-13-CVE-2026-46054","ROOT-OS-UBUNTU-2204-CVE-2026-46054","ROOT-OS-UBUNTU-2404-CVE-2026-46054","UBUNTU-CVE-2026-46054"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"Attackers can bypass SELinux access controls on overlayfs files via mmap and mprotect, potentially accessing restricted data.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-280","name":"Improper Handling of Insufficient Permissions or Privileges"},{"id":"CWE-862","name":"Missing Authorization"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: fix overlayfs mmap() and mprotect() access checks\n\nThe existing SELinux security model for overlayfs is to allow access if\nthe current task is able to access the top level file (the \"user\" file)\nand the mounter's credentials are sufficient to access the lower\nlevel file (the \"backing\" file).  Unfortunately, the current code does\nnot properly enforce these access controls for both mmap() and mprotect()\noperations on overlayfs filesystems.\n\nThis patch makes use of the newly created security_mmap_backing_file()\nLSM hook to provide the missing backing file enforcement for mmap()\noperations, and leverages the backing file API and new LSM blob to\nprovide the necessary information to properly enforce the mprotect()\naccess controls.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:8::baseos","Red Hat:enterprise_linux:8::crb","Red Hat:enterprise_linux:8::nfv","Red Hat:enterprise_linux:8::realtime","Rocky Linux:8"],"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":"selinux: fix overlayfs mmap() and mprotect() access checks","id":"CVE-2026-46054","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"missing_authorization","year":"2026"},"n_packages":108,"n_references":5,"next":{"headline":"apparmor: Fix string overrun due to missing termination","id":"CVE-2026-46055"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"bpftool","purl":"pkg:rpm/almalinux/bpftool","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/almalinux/kernel","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-stablelists","purl":"pkg:rpm/almalinux/kernel-abi-stablelists","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-core","purl":"pkg:rpm/almalinux/kernel-core","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-cross-headers","purl":"pkg:rpm/almalinux/kernel-cross-headers","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/almalinux/kernel-debug","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-core","purl":"pkg:rpm/almalinux/kernel-debug-core","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/almalinux/kernel-debug-devel","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules","purl":"pkg:rpm/almalinux/kernel-debug-modules","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules-extra","purl":"pkg:rpm/almalinux/kernel-debug-modules-extra","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/almalinux/kernel-devel","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-doc","purl":"pkg:rpm/almalinux/kernel-doc","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-headers","purl":"pkg:rpm/almalinux/kernel-headers","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-modules","purl":"pkg:rpm/almalinux/kernel-modules","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-modules-extra","purl":"pkg:rpm/almalinux/kernel-modules-extra","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt","purl":"pkg:rpm/almalinux/kernel-rt","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-core","purl":"pkg:rpm/almalinux/kernel-rt-core","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug","purl":"pkg:rpm/almalinux/kernel-rt-debug","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-core","purl":"pkg:rpm/almalinux/kernel-rt-debug-core","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-devel","purl":"pkg:rpm/almalinux/kernel-rt-debug-devel","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-modules","purl":"pkg:rpm/almalinux/kernel-rt-debug-modules","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-modules-extra","purl":"pkg:rpm/almalinux/kernel-rt-debug-modules-extra","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-devel","purl":"pkg:rpm/almalinux/kernel-rt-devel","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-modules","purl":"pkg:rpm/almalinux/kernel-rt-modules","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.rt7.478.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-modules-extra","purl":"pkg:rpm/almalinux/kernel-rt-modules-extra","source":"ALSA-2026:27812"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-tools","purl":"pkg:rpm/almalinux/kernel-tools","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-tools-libs","purl":"pkg:rpm/almalinux/kernel-tools-libs","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-tools-libs-devel","purl":"pkg:rpm/almalinux/kernel-tools-libs-devel","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump","purl":"pkg:rpm/almalinux/kernel-zfcpdump","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-core","purl":"pkg:rpm/almalinux/kernel-zfcpdump-core","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-devel","purl":"pkg:rpm/almalinux/kernel-zfcpdump-devel","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-modules","purl":"pkg:rpm/almalinux/kernel-zfcpdump-modules","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-modules-extra","purl":"pkg:rpm/almalinux/kernel-zfcpdump-modules-extra","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"perf","purl":"pkg:rpm/almalinux/perf","source":"ALSA-2026:27811"},{"ecosystem":"AlmaLinux:8","fixed":["4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3-perf","purl":"pkg:rpm/almalinux/python3-perf","source":"ALSA-2026:27811"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"bpftool","purl":"pkg:rpm/redhat/bpftool","source":"RHSA-2026:27811"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"bpftool-debuginfo","purl":"pkg:rpm/redhat/bpftool-debuginfo","source":"RHSA-2026:27811"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2026:27811"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-stablelists","purl":"pkg:rpm/redhat/kernel-abi-stablelists","source":"RHSA-2026:27811"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.18.0-553.137.1.el8_10"],"introduced":["0"],"last_affected":[],"package":"kernel-core","purl":"pkg:rpm/redhat/kernel-core","source":"RHSA-2026:27811"}],"prev":{"headline":"net: rds: fix MR cleanup on copy error","id":"CVE-2026-46053"},"products":["Linux"],"published":"2026-05-27","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":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"2026-10-19","vendors":["Linux"]},"summary":"Attackers can bypass SELinux access controls on overlayfs files via mmap and mprotect, potentially accessing restricted data.","url":"https://insights.sbomify.com/CVE-2026-46054/"}