{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-34426 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34426 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34426 is a medium-severity command injection vulnerability in Zoom Video Communications Inc Keybase Client for Windows, published on 14 Dec 2021. 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-2021-34426 and fix it if it is affected.\n\nWhat it is: CVE-2021-34426 is a medium-severity command injection vulnerability in Zoom Video Communications Inc Keybase Client for Windows, published on 14 Dec 2021. 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-2021-34426 in the wild and no public exploit code.\n\nAffected product: Zoom Video Communications Inc Keybase Client for Windows. 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-2021-34426/ (Markdown: https://insights.sbomify.com/CVE-2021-34426/index.md)","id":"CVE-2021-34426","markdown":"https://insights.sbomify.com/CVE-2021-34426/index.md","name":"CVE-2021-34426","record":{"aliases":["GHSA-h72j-pmww-phww"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Keybase Client","requires_auth":"none","summary":"A malicious actor with write access to a Git repository can execute arbitrary Windows commands on a user's local system via the Keybase Client.","user_interaction":"required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Zoom","cpe":[{"product":"keybase","vendor":"keybase"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[],"description":"A vulnerability was discovered in the Keybase Client for Windows before version 5.6.0 when a user executed the \"keybase git lfs-config\" command on the command-line. In versions prior to 5.6.0, a malicious actor with write access to a user\\'s Git repository could leverage this vulnerability to potentially execute arbitrary Windows commands on a user\\'s local system.","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":"Arbitrary command execution in Keybase Client for Windows","id":"CVE-2021-34426","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"File upload in Eclipse BIRT","id":"CVE-2021-34427"},"packages":[],"prev":{"headline":"Server Side Request Forgery in Zoom Client for Meetings chat","id":"CVE-2021-34425"},"products":["Keybase Client for Windows"],"published":"2021-12-14","related":[{"cvss_score":9.8,"headline":"Race condition in n/a","id":"CVE-2019-7249","kev_date_added":null,"published":"2019-01-31"},{"cvss_score":7.8,"headline":"Privilege escalation in n/a","id":"CVE-2018-18629","kev_date_added":null,"published":"2018-12-20"},{"cvss_score":7.5,"headline":"Other in n/a","id":"CVE-2019-16992","kev_date_added":null,"published":"2019-09-29"},{"cvss_score":7.2,"headline":"Path traversal of file names in Keybase Client for Windows","id":"CVE-2021-34422","kev_date_added":null,"published":"2021-11-11"},{"cvss_score":5.5,"headline":"Information disclosure in n/a","id":"CVE-2021-23827","kev_date_added":null,"published":"2021-02-22"},{"cvss_score":3.7,"headline":"Retained exploded messages in Keybase clients for macOS and Windows","id":"CVE-2022-22779","kev_date_added":null,"published":"2022-02-09"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["Zoom Video Communications Inc"]},"summary":"A malicious actor with write access to a Git repository can execute arbitrary Windows commands on a user's local system via the Keybase Client.","url":"https://insights.sbomify.com/CVE-2021-34426/"}