{"answers":{"affected":"2 open source packages ship an affected version, including just-safe-set. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-25952 in the wild and no public exploit code.","fix":"Upgrade just-safe-set to 2.2.2 or later.","what":"CVE-2021-25952 is a critical vulnerability in just-safe-set, published on 7 Jul 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-2021-25952 and fix it if it is affected.\n\nWhat it is: CVE-2021-25952 is a critical vulnerability in just-safe-set, published on 7 Jul 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-2021-25952 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- just-safe-set (npm): affected from 1.0.0; fixed in 2.2.2\n- just-safe-set (npm): affected from 1.0.0; fixed in 2.2.2\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-2021-25952/ (Markdown: https://insights.sbomify.com/CVE-2021-25952/index.md)","id":"CVE-2021-25952","markdown":"https://insights.sbomify.com/CVE-2021-25952/index.md","name":"CVE-2021-25952","record":{"aliases":["GHSA-v26w-gcxh-v4r7"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript utility library","requires_auth":"none","summary":"Prototype pollution in just-safe-set allows attackers to cause denial of service and potentially execute remote code.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Mend","cpe":[{"product":"just-safe-set","vendor":"just-safe-set_project"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"Prototype pollution vulnerability in ‘just-safe-set’ versions 1.0.0 through 2.2.1 allows an attacker to cause a denial of service and may lead to remote code execution.","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 polluation in just-safe-set","id":"CVE-2021-25952","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"other","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Prototype Pollution in putil-merge","id":"CVE-2021-25953"},"packages":[{"ecosystem":"npm","fixed":["2.2.2"],"introduced":["1.0.0"],"last_affected":[],"package":"just-safe-set","purl":null,"source":"GHSA-v26w-gcxh-v4r7"},{"ecosystem":"npm","fixed":["2.2.2"],"introduced":["1.0.0"],"last_affected":[],"package":"just-safe-set","purl":"pkg:npm/just-safe-set","source":"GHSA-v26w-gcxh-v4r7"}],"prev":{"headline":"XML2Dict XML Entity Expansion Vulnerability","id":"CVE-2021-25951"},"products":["just-safe-set"],"published":"2021-07-07","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":["n/a"]},"summary":"Prototype pollution in just-safe-set allows attackers to cause denial of service and potentially execute remote code.","url":"https://insights.sbomify.com/CVE-2021-25952/"}