{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-100866 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-100866 is a medium-severity vulnerability in o2sh onefetch, published on 27 Sep 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-2026-100866 and fix it if it is affected.\n\nWhat it is: CVE-2026-100866 is a medium-severity vulnerability in o2sh onefetch, published on 27 Sep 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-2026-100866 in the wild and no public exploit code.\n\nAffected product: o2sh onefetch. 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-2026-100866/ (Markdown: https://insights.sbomify.com/CVE-2026-100866/index.md)","id":"CVE-2026-100866","markdown":"https://insights.sbomify.com/CVE-2026-100866/index.md","name":"CVE-2026-100866","record":{"aliases":["GHSA-fp7q-m5xh-3ggj","openSUSE-SU-2026:12085-1"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["other"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"CLI repository tool","requires_auth":"none","summary":"Attackers can inject terminal escape sequences via repository metadata to manipulate victim terminal output and window titles when running onefetch.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-150","name":"Improper Neutralization of Escape, Meta, or Control Sequences"}],"description":"onefetch through 2.28.1 writes repository information field values to the terminal without removing control characters, allowing terminal escape sequence injection. Attackers can embed ANSI/OSC escape sequences in project manifest version and name fields to manipulate terminal output, rewrite window titles, hide text, or trigger emulator-specific behavior when victims run onefetch.","ecosystems":["openSUSE:Tumbleweed"],"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":"onefetch through 2.28.1 Terminal Escape Sequence Injection","id":"CVE-2026-100866","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":1,"n_references":5,"next":{"headline":"spaceship-prompt through 4.22.5 Terminal Escape Sequence Injection","id":"CVE-2026-100867"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["3.0.0-1.1"],"introduced":["0"],"last_affected":[],"package":"onefetch","purl":"pkg:rpm/opensuse/onefetch\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:12085-1"}],"prev":{"headline":"Heym before 0.0.53 Remote Code Execution via eval() Sandbox Escape","id":"CVE-2026-100865"},"products":["onefetch"],"published":"2026-09-27","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"2026-09-30","vendors":["o2sh"]},"summary":"Attackers can inject terminal escape sequences via repository metadata to manipulate victim terminal output and window titles when running onefetch.","url":"https://insights.sbomify.com/CVE-2026-100866/"}