{"answers":{"affected":"6 open source packages ship an affected version, including ua-parser-js. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-4229 in the wild and no public exploit code.","fix":"Upgrade ua-parser-js to a fixed version for your release line: 0.7.30, 0.8.1 or 1.0.1.","what":"CVE-2021-4229 is a medium-severity vulnerability in unspecified ua-parser-js, published on 24 May 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-4229 and fix it if it is affected.\n\nWhat it is: CVE-2021-4229 is a medium-severity vulnerability in unspecified ua-parser-js, published on 24 May 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-4229 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ua-parser-js (npm): affected from 0.7.29; fixed in 0.7.30\n- ua-parser-js (npm): affected from 0.7.29; fixed in 0.7.30\n- ua-parser-js (npm): affected from 0.8.0; fixed in 0.8.1\n- ua-parser-js (npm): affected from 0.8.0; fixed in 0.8.1\n- ua-parser-js (npm): affected from 1.0.0; fixed in 1.0.1\n- ua-parser-js (npm): affected from 1.0.0; fixed in 1.0.1\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-2021-4229/ (Markdown: https://insights.sbomify.com/CVE-2021-4229/index.md)","id":"CVE-2021-4229","markdown":"https://insights.sbomify.com/CVE-2021-4229/index.md","name":"CVE-2021-4229","record":{"aliases":["GHSA-pjwm-rvh2-c87w"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript user agent parser","requires_auth":"none","summary":"A malicious backdoor in the ua-parser-js library enables unauthorized cryptocurrency mining and code execution on affected systems.","user_interaction":"required","vuln_class":"supply_chain"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"ua-parser-js","vendor":"ua-parser-js_project"}],"cvss":{"score":5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-829","name":"Inclusion of Functionality from Untrusted Control Sphere"},{"id":"CWE-912","name":"Hidden Functionality"}],"description":"A vulnerability was found in ua-parser-js 0.7.29/0.8.0/1.0.0. It has been rated as critical. This issue affects the crypto mining component which introduces a backdoor. Upgrading to version 0.7.30, 0.8.1 and 1.0.1 is able to address this issue. It is recommended to upgrade the affected component.","ecosystems":["npm"],"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":"ua-parser-js Crypto Mining backdoor","id":"CVE-2021-4229","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"supply_chain","year":"2021"},"n_packages":6,"n_references":3,"next":{"headline":"Airfield Online MySQL Backup improper authentication","id":"CVE-2021-4230"},"packages":[{"ecosystem":"npm","fixed":["0.7.30"],"introduced":["0.7.29"],"last_affected":[],"package":"ua-parser-js","purl":null,"source":"GHSA-pjwm-rvh2-c87w"},{"ecosystem":"npm","fixed":["0.7.30"],"introduced":["0.7.29"],"last_affected":[],"package":"ua-parser-js","purl":"pkg:npm/ua-parser-js","source":"GHSA-pjwm-rvh2-c87w"},{"ecosystem":"npm","fixed":["0.8.1"],"introduced":["0.8.0"],"last_affected":[],"package":"ua-parser-js","purl":null,"source":"GHSA-pjwm-rvh2-c87w"},{"ecosystem":"npm","fixed":["0.8.1"],"introduced":["0.8.0"],"last_affected":[],"package":"ua-parser-js","purl":"pkg:npm/ua-parser-js","source":"GHSA-pjwm-rvh2-c87w"},{"ecosystem":"npm","fixed":["1.0.1"],"introduced":["1.0.0"],"last_affected":[],"package":"ua-parser-js","purl":null,"source":"GHSA-pjwm-rvh2-c87w"},{"ecosystem":"npm","fixed":["1.0.1"],"introduced":["1.0.0"],"last_affected":[],"package":"ua-parser-js","purl":"pkg:npm/ua-parser-js","source":"GHSA-pjwm-rvh2-c87w"}],"prev":{"headline":"Hard-coded TLS Certificate","id":"CVE-2021-4228"},"products":["ua-parser-js"],"published":"2022-05-24","related":[{"cvss_score":7.5,"headline":"Regular Expression Denial of Service (ReDoS) in ua-parser-js","id":"CVE-2021-27292","kev_date_added":null,"published":"2021-03-17"},{"cvss_score":5.3,"headline":"UAParser.js: Unbounded `Sec-CH-UA-Model` parsing can trigger ReDoS in `withClientHints()`","id":"CVE-2026-48125","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":5.3,"headline":"ReDoS Vulnerability in ua-parser-js version","id":"CVE-2022-25927","kev_date_added":null,"published":"2023-01-25"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-15","vendors":["unspecified"]},"summary":"A malicious backdoor in the ua-parser-js library enables unauthorized cryptocurrency mining and code execution on affected systems.","url":"https://insights.sbomify.com/CVE-2021-4229/"}