{"answers":{"affected":"2 open source packages ship an affected version, including @nyariv/sandboxjs.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34146 exists.","fix":"Upgrade @nyariv/sandboxjs to 0.8.24 or later.","what":"CVE-2025-34146 is a high-severity code injection vulnerability in nyariv sandboxjs, published on 31 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-34146 and fix it if it is affected.\n\nWhat it is: CVE-2025-34146 is a high-severity code injection vulnerability in nyariv sandboxjs, published on 31 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34146 exists.\n\nAffected packages and fixed versions:\n- @nyariv/sandboxjs (npm): affected all versions; fixed in 0.8.24\n- @nyariv/sandboxjs (npm): affected all versions; fixed in 0.8.24\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-2025-34146/ (Markdown: https://insights.sbomify.com/CVE-2025-34146/index.md)","id":"CVE-2025-34146","markdown":"https://insights.sbomify.com/CVE-2025-34146/index.md","name":"CVE-2025-34146","record":{"aliases":["GHSA-9qm3-6qrr-c76m"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"JavaScript sandbox library","requires_auth":"none","summary":"Attackers can escape the sandbox and execute arbitrary code or cause denial of service via prototype pollution in the sandboxjs library.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"A prototype pollution vulnerability exists in @nyariv/sandboxjs versions \u003c= 0.8.23, allowing attackers to inject arbitrary properties into Object.prototype via crafted JavaScript code. This can result in a denial-of-service (DoS) condition or, under certain conditions, escape the sandboxed environment intended to restrict code execution. The vulnerability stems from insufficient prototype access checks in the sandbox’s executor logic, particularly in the handling of JavaScript function objects returned.","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":"nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS","id":"CVE-2025-34146","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"code_injection","year":"2025"},"n_packages":2,"n_references":4,"next":{"headline":"Shenzhen Aitemi M300 Wi-Fi Repeater OS Command Injection via SSID","id":"CVE-2025-34147"},"packages":[{"ecosystem":"npm","fixed":["0.8.24"],"introduced":["0"],"last_affected":[],"package":"@nyariv/sandboxjs","purl":null,"source":"GHSA-9qm3-6qrr-c76m"},{"ecosystem":"npm","fixed":["0.8.24"],"introduced":["0"],"last_affected":[],"package":"@nyariv/sandboxjs","purl":"pkg:npm/%40nyariv/sandboxjs","source":"GHSA-9qm3-6qrr-c76m"}],"prev":{"headline":"This CVE ID was rejected because it was reserved but not used for a vulnerability disclosure.","id":"CVE-2025-34145"},"products":["sandboxjs"],"published":"2025-07-31","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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["nyariv"]},"summary":"Attackers can escape the sandbox and execute arbitrary code or cause denial of service via prototype pollution in the sandboxjs library.","url":"https://insights.sbomify.com/CVE-2025-34146/"}