{"answers":{"affected":"2 open source packages ship an affected version, including hellojs. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-26505 exists.","fix":"Upgrade hellojs to 1.18.8 or later.","what":"CVE-2021-26505 is a critical vulnerability in n/a, published on 11 Aug 2023."},"fix_prompt":"Check this codebase for CVE-2021-26505 and fix it if it is affected.\n\nWhat it is: CVE-2021-26505 is a critical vulnerability in n/a, published on 11 Aug 2023. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-26505 exists.\n\nAffected packages and fixed versions:\n- hellojs (npm): affected all versions; fixed in 1.18.8\n- hellojs (npm): affected all versions; fixed in 1.18.8\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-2021-26505/ (Markdown: https://insights.sbomify.com/CVE-2021-26505/index.md)","id":"CVE-2021-26505","markdown":"https://insights.sbomify.com/CVE-2021-26505/index.md","name":"CVE-2021-26505","record":{"aliases":["GHSA-g3vf-47fv-8f3c"],"analysis":null,"analysis_generated_by":null,"assigner":"mitre","cpe":[{"product":"hello.js","vendor":"hello.js_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 MrSwitch hello.js version 1.18.6, allows remote attackers to execute arbitrary code via hello.utils.extend function.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"MrSwitch hello.js vulnerable to prototype pollution","id":"CVE-2021-26505","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2021"},"n_packages":2,"n_references":1,"next":{"headline":"Memory corruption in n/a","id":"CVE-2021-26528"},"packages":[{"ecosystem":"npm","fixed":["1.18.8"],"introduced":["0"],"last_affected":[],"package":"hellojs","purl":null,"source":"GHSA-g3vf-47fv-8f3c"},{"ecosystem":"npm","fixed":["1.18.8"],"introduced":["0"],"last_affected":[],"package":"hellojs","purl":"pkg:npm/hellojs","source":"GHSA-g3vf-47fv-8f3c"}],"prev":{"headline":"Path traversal in n/a","id":"CVE-2021-26504"},"products":["n/a"],"published":"2023-08-11","related":[{"cvss_score":9.9,"headline":"Cross-site Scripting (XSS)","id":"CVE-2020-7741","kev_date_added":null,"published":"2020-10-06"}],"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":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-10-09","vendors":["n/a"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2021-26505/"}