{"answers":{"affected":"2 open source packages ship an affected version, including fast-json-patch. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-4279 in the wild and no public exploit code.","fix":"Upgrade fast-json-patch to 3.1.1 or later.","what":"CVE-2021-4279 is a medium-severity vulnerability in Starcounter-Jack JSON-Patch, published on 25 Dec 2022. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-4279 and fix it if it is affected.\n\nWhat it is: CVE-2021-4279 is a medium-severity vulnerability in Starcounter-Jack JSON-Patch, published on 25 Dec 2022. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-4279 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- fast-json-patch (npm): affected all versions; fixed in 3.1.1\n- fast-json-patch (npm): affected all versions; fixed in 3.1.1\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-2021-4279/ (Markdown: https://insights.sbomify.com/CVE-2021-4279/index.md)","id":"CVE-2021-4279","markdown":"https://insights.sbomify.com/CVE-2021-4279/index.md","name":"CVE-2021-4279","record":{"aliases":["GHSA-8gh8-hqwg-xf34"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript JSON-Patch library","requires_auth":"low_privilege","summary":"Remote attackers can exploit prototype pollution in the JSON-Patch library to potentially execute code or escalate privileges.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"json-patch","vendor":"starcounter-jack"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"A vulnerability has been found in Starcounter-Jack JSON-Patch up to 3.1.0 and classified as problematic. This vulnerability affects unknown code. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.1 is able to address this issue. The name of the patch is 7ad6af41eabb2d799f698740a91284d762c955c9. It is recommended to upgrade the affected component. VDB-216778 is the identifier assigned to this vulnerability.","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":"Starcounter-Jack JSON-Patch prototype pollution","id":"CVE-2021-4279","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"other","year":"2021"},"n_packages":2,"n_references":5,"next":{"headline":"styler_praat_scripts Slash file_segmenter.praat denial of service","id":"CVE-2021-4280"},"packages":[{"ecosystem":"npm","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"fast-json-patch","purl":null,"source":"GHSA-8gh8-hqwg-xf34"},{"ecosystem":"npm","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"fast-json-patch","purl":"pkg:npm/fast-json-patch","source":"GHSA-8gh8-hqwg-xf34"}],"prev":{"headline":"cronvel tree-kit prototype pollution","id":"CVE-2021-4278"},"products":["JSON-Patch"],"published":"2022-12-25","related":[],"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":["Starcounter-Jack"]},"summary":"Remote attackers can exploit prototype pollution in the JSON-Patch library to potentially execute code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2021-4279/"}