{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89438 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-89438 is a missing authorization vulnerability in Linux, published on 11 Sep 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-2026-89438 and fix it if it is affected.\n\nWhat it is: CVE-2026-89438 is a missing authorization vulnerability in Linux, published on 11 Sep 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-2026-89438 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2026-89438/ (Markdown: https://insights.sbomify.com/CVE-2026-89438/index.md)","id":"CVE-2026-89438","markdown":"https://insights.sbomify.com/CVE-2026-89438/index.md","name":"CVE-2026-89438","record":{"aliases":["AZL-100674","BELL-CVE-2026-89438","DEBIAN-CVE-2026-89438","GHSA-vpjv-6qfx-qxxr","UBUNTU-CVE-2026-89438"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"high_privilege","summary":"A missing validation in the Linux kernel ISST driver allows privileged users to trigger invalid MMIO offsets, potentially causing system crashes or privilege escalation.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: ISST: Validate logical CPU id and clos id\n\nValidate max CLOS ID and logical CPU ID for core power feature.\nReject any clos level or logical CPU number greater than the\nsupported maximum. These are used to calculate MMIO offset.","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":"platform/x86: ISST: Validate logical CPU id and clos id","id":"CVE-2026-89438","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"platform/x86: ISST: Add a NULL check for sst_inst[]","id":"CVE-2026-89439"},"packages":[],"prev":{"headline":"platform/x86: int1092: Fix potential memory leak in sar_probe()","id":"CVE-2026-89437"},"products":["Linux"],"published":"2026-09-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A missing validation in the Linux kernel ISST driver allows privileged users to trigger invalid MMIO offsets, potentially causing system crashes or privilege escalation.","url":"https://insights.sbomify.com/CVE-2026-89438/"}