{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89726 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-89726 is a memory corruption vulnerability in Linux, published on 11 Sep 2026."},"fix_prompt":"Check this codebase for CVE-2026-89726 and fix it if it is affected.\n\nWhat it is: CVE-2026-89726 is a memory corruption vulnerability in Linux, published on 11 Sep 2026. \nExploitation: There is no known exploitation of CVE-2026-89726 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-2026-89726/ (Markdown: https://insights.sbomify.com/CVE-2026-89726/index.md)","id":"CVE-2026-89726","markdown":"https://insights.sbomify.com/CVE-2026-89726/index.md","name":"CVE-2026-89726","record":{"aliases":["AZL-100106","BELL-CVE-2026-89726","DEBIAN-CVE-2026-89726","GHSA-rfcj-g8r9-q3mj","UBUNTU-CVE-2026-89726"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read","denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"An off-by-one out-of-bounds read in the Linux kernel's ucs2_strnlen function allows attackers to read memory past buffer limits, potentially causing crashes or information leaks.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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\nlib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen()\n\nPatch series \"lib/ucs2_string.c: fix out-of-bounds read in\nucs2_strnlen()\", v2.\n\nThis series fixes an off-by-one out-of-bounds read in ucs2_strnlen().\n\nThe first patch is the real fix, the second patch comes as a bonus and\nfixes the code indentation.\n\nThis patch (of 2):\n\nucs2_strnlen() checks the current character before checking whether the\ncaller-provided maximum length has been reached.  If the input is not\nNUL-terminated within that bound, the loop can read one ucs2_char_t past\nthe limit.\n\nTest the length before dereferencing to prevent an off-by-one\nout-of-bounds read.","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":"lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen()","id":"CVE-2026-89726","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"KVM: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID","id":"CVE-2026-89727"},"packages":[],"prev":{"headline":"media: cec: stm32: prevent out-of-bounds write on RX overflow","id":"CVE-2026-89725"},"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":"An off-by-one out-of-bounds read in the Linux kernel's ucs2_strnlen function allows attackers to read memory past buffer limits, potentially causing crashes or information leaks.","url":"https://insights.sbomify.com/CVE-2026-89726/"}