{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63277 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-63277 is a high-severity code injection vulnerability in The Document Foundation LibreOffice, published on 5 Oct 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-2026-63277 and fix it if it is affected.\n\nWhat it is: CVE-2026-63277 is a high-severity code injection vulnerability in The Document Foundation LibreOffice, published on 5 Oct 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-2026-63277 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-2026-63277/ (Markdown: https://insights.sbomify.com/CVE-2026-63277/index.md)","id":"CVE-2026-63277","markdown":"https://insights.sbomify.com/CVE-2026-63277/index.md","name":"CVE-2026-63277","record":{"aliases":["DEBIAN-CVE-2026-63277","ECHO-4e8e-5028-bd77","GHSA-5jx8-5g92-5w59","MINI-qc23-wv85-h58x","UBUNTU-CVE-2026-63277"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"LibreOffice Calc","requires_auth":"none","summary":"Attackers can execute arbitrary Java code by tricking users into opening a LibreOffice Calc document with a malicious external data source link.","user_interaction":"required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Document Fdn.","cpe":[],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-829","name":"Inclusion of Functionality from Untrusted Control Sphere"}],"description":"LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run Java code from that location. In fixed versions an entry in a Java class path has to be a file URL.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-10-06","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-06T15:09:45Z","kind":"github_poc","ref":"https://github.com/HORKimhab/CVE-2026-63277","stars":0,"title":"CVE-2026-63277,"}],"tier":"poc_unverified"},"has_fix":true,"headline":"RCE via calcext:data-mappings, sql provider and jdbc connector","id":"CVE-2026-63277","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Package URLs can be used to exfiltrate arbitrary INI file values and environment variables","id":"CVE-2026-63278"},"packages":[],"prev":{"headline":"Stack buffer overflow in CFF to Type 1 font conversion","id":"CVE-2026-63276"},"products":["LibreOffice"],"published":"2026-10-05","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-05","vendors":["The Document Foundation"]},"summary":"Attackers can execute arbitrary Java code by tricking users into opening a LibreOffice Calc document with a malicious external data source link.","url":"https://insights.sbomify.com/CVE-2026-63277/"}