{"answers":{"affected":"2 open source packages ship an affected version, including merge. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-28499 in the wild and no public exploit code.","fix":"Upgrade merge to 2.1.1 or later.","what":"CVE-2020-28499 is a high-severity vulnerability in merge, published on 18 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-28499 and fix it if it is affected.\n\nWhat it is: CVE-2020-28499 is a high-severity vulnerability in merge, published on 18 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-28499 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- merge (npm): affected all versions; fixed in 2.1.1\n- merge (npm): affected all versions; fixed in 2.1.1\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-2020-28499/ (Markdown: https://insights.sbomify.com/CVE-2020-28499/index.md)","id":"CVE-2020-28499","markdown":"https://insights.sbomify.com/CVE-2020-28499/index.md","name":"CVE-2020-28499","record":{"aliases":["GHSA-7wpw-2hjm-89gp","ROOT-APP-NPM-CVE-2020-28499"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript merge library","requires_auth":"none","summary":"The merge library is vulnerable to prototype pollution, potentially allowing attackers to modify object prototypes and execute arbitrary code or escalate privileges.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"merge","vendor":"merge_project"}],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P","version":"3.1"},"cwes":[],"description":"All versions of package merge are vulnerable to Prototype Pollution via _recursiveMerge .","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","id":"CVE-2020-28499","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"other","year":"2020"},"n_packages":2,"n_references":3,"next":{"headline":"Regular Expression Denial of Service (ReDoS)","id":"CVE-2020-28500"},"packages":[{"ecosystem":"npm","fixed":["2.1.1"],"introduced":["0"],"last_affected":[],"package":"merge","purl":null,"source":"GHSA-7wpw-2hjm-89gp"},{"ecosystem":"npm","fixed":["2.1.1"],"introduced":["0"],"last_affected":[],"package":"merge","purl":"pkg:npm/merge","source":"GHSA-7wpw-2hjm-89gp"}],"prev":{"headline":"Cryptographic Issues","id":"CVE-2020-28498"},"products":["merge"],"published":"2021-02-18","related":[{"cvss_score":7.5,"headline":"Prototype Pollution in merge","id":"CVE-2018-16469","kev_date_added":null,"published":"2018-10-30"},{"cvss_score":6.8,"headline":"Prototype Pollution in viking04/merge","id":"CVE-2021-3645","kev_date_added":null,"published":"2021-09-10"},{"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["n/a"]},"summary":"The merge library is vulnerable to prototype pollution, potentially allowing attackers to modify object prototypes and execute arbitrary code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2020-28499/"}