{"answers":{"affected":"2 open source packages ship an affected version, including @viking04/merge. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-3645 in the wild and no public exploit code.","fix":"Upgrade @viking04/merge to 1.0.2 or later.","what":"CVE-2021-3645 is a medium-severity vulnerability in viking04/merge, published on 10 Sep 2021. 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-2021-3645 and fix it if it is affected.\n\nWhat it is: CVE-2021-3645 is a medium-severity vulnerability in viking04/merge, published on 10 Sep 2021. 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-2021-3645 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @viking04/merge (npm): affected all versions; fixed in 1.0.2\n- @viking04/merge (npm): affected all versions; fixed in 1.0.2\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-2021-3645/ (Markdown: https://insights.sbomify.com/CVE-2021-3645/index.md)","id":"CVE-2021-3645","markdown":"https://insights.sbomify.com/CVE-2021-3645/index.md","name":"CVE-2021-3645","record":{"aliases":["GHSA-cqqh-49mx-fq63"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"npm merge library","requires_auth":"none","summary":"Prototype pollution in the merge library allows attackers to modify object prototypes, potentially leading to code execution or security bypasses.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"@huntrdev","cpe":[{"product":"merge","vendor":"merge_project"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"merge is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","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":"Prototype Pollution in viking04/merge","id":"CVE-2021-3645","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"other","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Cross-site Scripting (XSS) - Reflected in btcpayserver/btcpayserver","id":"CVE-2021-3646"},"packages":[{"ecosystem":"npm","fixed":["1.0.2"],"introduced":["0"],"last_affected":[],"package":"@viking04/merge","purl":null,"source":"GHSA-cqqh-49mx-fq63"},{"ecosystem":"npm","fixed":["1.0.2"],"introduced":["0"],"last_affected":[],"package":"@viking04/merge","purl":"pkg:npm/%40viking04/merge","source":"GHSA-cqqh-49mx-fq63"}],"prev":{"headline":"wildfly-core allows user with access to management interface to access vault expression, retrieve item from vault","id":"CVE-2021-3644"},"products":["viking04/merge"],"published":"2021-09-10","related":[{"cvss_score":7.5,"headline":"Prototype Pollution in merge","id":"CVE-2018-16469","kev_date_added":null,"published":"2018-10-30"},{"cvss_score":7.3,"headline":"Prototype Pollution","id":"CVE-2020-28499","kev_date_added":null,"published":"2021-02-18"},{"cvss_score":5.6,"headline":"Prototype Pollution","id":"CVE-2021-23397","kev_date_added":null,"published":"2022-07-25"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["viking04"]},"summary":"Prototype pollution in the merge library allows attackers to modify object prototypes, potentially leading to code execution or security bypasses.","url":"https://insights.sbomify.com/CVE-2021-3645/"}