{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8140 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-8140 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-8140 is a medium-severity code injection vulnerability in Desktop Client, published on 20 Mar 2020. 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-2020-8140 and fix it if it is affected.\n\nWhat it is: CVE-2020-8140 is a medium-severity code injection vulnerability in Desktop Client, published on 20 Mar 2020. 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-2020-8140 in the wild and no public exploit code.\n\nAffected product: Desktop Client. 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-2020-8140/ (Markdown: https://insights.sbomify.com/CVE-2020-8140/index.md)","id":"CVE-2020-8140","markdown":"https://insights.sbomify.com/CVE-2020-8140/index.md","name":"CVE-2020-8140","record":{"aliases":["GHSA-2xxg-j453-5c23"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Nextcloud Desktop Client","requires_auth":"high_privilege","summary":"Attackers can execute arbitrary code on macOS by setting the DYLD_INSERT_LIBRARIES environment variable when launching the Nextcloud Desktop Client.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"desktop","vendor":"nextcloud"}],"cvss":{"score":6.7,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"A code injection in Nextcloud Desktop Client 2.6.2 for macOS allowed to load arbitrary code when starting the client with DYLD_INSERT_LIBRARIES set in the environment.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Code injection in Desktop Client","id":"CVE-2020-8140","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Improper Control of Generation of Code in doT","id":"CVE-2020-8141"},"packages":[],"prev":{"headline":"Missing authorization in Nextcloud Server","id":"CVE-2020-8139"},"products":["Desktop Client"],"published":"2020-03-20","related":[{"cvss_score":9.1,"headline":"Misconfiguration in n/a","id":"CVE-2024-46958","kev_date_added":null,"published":"2024-09-16"},{"cvss_score":7.8,"headline":"Code injection in Desktop Client","id":"CVE-2020-8224","kev_date_added":null,"published":"2020-08-10"},{"cvss_score":7.5,"headline":"Information disclosure in Desktop Client","id":"CVE-2020-8225","kev_date_added":null,"published":"2020-09-18"},{"cvss_score":7.3,"headline":"Untrusted Search Path in Nextcloud Desktop Client","id":"CVE-2021-37617","kev_date_added":null,"published":"2021-08-18"},{"cvss_score":6.9,"headline":"Nextcloud: Lack of authenticity of metadata keys allows a malicious server to gain access to E2EE folders","id":"CVE-2023-28999","kev_date_added":null,"published":"2023-04-04"},{"cvss_score":6.8,"headline":"Path traversal in Desktop Client","id":"CVE-2020-8227","kev_date_added":null,"published":"2020-08-21"},{"cvss_score":6.7,"headline":"Nextcloud Desktop: Initialization vector reuse in E2EE allows malicious server admin to break, manipulate, access files","id":"CVE-2023-28997","kev_date_added":null,"published":"2023-04-04"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can execute arbitrary code on macOS by setting the DYLD_INSERT_LIBRARIES environment variable when launching the Nextcloud Desktop Client.","url":"https://insights.sbomify.com/CVE-2020-8140/"}