{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-8358 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-8358 is a medium-severity memory corruption vulnerability in The Document Foundation LibreOffice, published on 15 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-8358 and fix it if it is affected.\n\nWhat it is: CVE-2026-8358 is a medium-severity memory corruption vulnerability in The Document Foundation LibreOffice, published on 15 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-8358 in the wild and no public exploit code.\n\nAffected product: The Document Foundation LibreOffice. 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-2026-8358/ (Markdown: https://insights.sbomify.com/CVE-2026-8358/index.md)","id":"CVE-2026-8358","markdown":"https://insights.sbomify.com/CVE-2026-8358/index.md","name":"CVE-2026-8358","record":{"aliases":["DEBIAN-CVE-2026-8358","GHSA-gpc5-jgqj-xp2q","UBUNTU-CVE-2026-8358"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"LibreOffice Calc","requires_auth":"none","summary":"Heap buffer overflow in LibreOffice Calc allows attackers to execute arbitrary code or cause denial of service via a crafted spreadsheet with duplicate change identifiers.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Document Fdn.","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"},{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the same change identifier for two different kinds of change. The importer then treated one change object as a different, larger type and wrote past the end of its allocation. In fixed versions records with a duplicate identifier are rejected.","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":"Heap buffer overflow in spreadsheet tracked-changes import","id":"CVE-2026-8358","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Gladinet Triofox WOSHttpStatusModule.dll NULL Function Pointer Call DoS","id":"CVE-2026-8359"},"packages":[],"prev":{"headline":"Heap buffer overflow in Calc formula compilation","id":"CVE-2026-8357"},"products":["LibreOffice"],"published":"2026-06-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-06-16","vendors":["The Document Foundation"]},"summary":"Heap buffer overflow in LibreOffice Calc allows attackers to execute arbitrary code or cause denial of service via a crafted spreadsheet with duplicate change identifiers.","url":"https://insights.sbomify.com/CVE-2026-8358/"}