{"answers":{"affected":"2 open source packages ship an affected version, including vm2.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47139 exists.","fix":"Upgrade vm2 to 3.11.4 or later.","what":"CVE-2026-47139 is a high-severity vulnerability in patriksimek vm2, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-47139 and fix it if it is affected.\n\nWhat it is: CVE-2026-47139 is a high-severity vulnerability in patriksimek vm2, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47139 exists.\n\nAffected packages and fixed versions:\n- vm2 (npm): affected all versions; fixed in 3.11.4\n- vm2 (npm): affected all versions; fixed in 3.11.4\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-2026-47139/ (Markdown: https://insights.sbomify.com/CVE-2026-47139/index.md)","id":"CVE-2026-47139","markdown":"https://insights.sbomify.com/CVE-2026-47139/index.md","name":"CVE-2026-47139","record":{"aliases":["ECHO-639f-b736-8c56","GHSA-r9pm-gxmw-wv6p","MINI-mmhw-7vqp-f7v9","ROOT-APP-NPM-CVE-2026-47139"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Node.js sandbox library","requires_auth":"none","summary":"Attackers can bypass network restrictions in vm2 NodeVM by accessing internal HTTP builtins, allowing unauthorized outbound requests and socket listening.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-693","name":"Protection Mechanism Failure"}],"description":"vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM supports excluding public network builtins from the wildcard builtin option. With this configuration direct access to http, https, http2, net, dgram, tls, dns, and dns/promises is blocked. However, Node.js also exposes underscored internal HTTP builtins such as _http_client and _http_server. These are not blocked when the public modules are excluded. Sandboxed code can use these internal builtins to make outbound HTTP requests and open listening HTTP sockets even though the public network modules are denied. This issue has been patched in version 3.11.4.","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":"vm2: NodeVM network builtin exclusions bypass via internal _http_client and _http_server","id":"CVE-2026-47139","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"vm2: NodeVM builtin denylist bypass via process and inspector/promises allows host code execution","id":"CVE-2026-47140"},"packages":[{"ecosystem":"npm","fixed":["3.11.4"],"introduced":["0"],"last_affected":[],"package":"vm2","purl":null,"source":"GHSA-r9pm-gxmw-wv6p"},{"ecosystem":"npm","fixed":["3.11.4"],"introduced":["0"],"last_affected":[],"package":"vm2","purl":"pkg:npm/vm2","source":"GHSA-r9pm-gxmw-wv6p"}],"prev":{"headline":"Parse Server: Pre-authentication denial of service via client version header regex backtracking","id":"CVE-2026-47138"},"products":["vm2"],"published":"2026-06-12","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-12","vendors":["patriksimek"]},"summary":"Attackers can bypass network restrictions in vm2 NodeVM by accessing internal HTTP builtins, allowing unauthorized outbound requests and socket listening.","url":"https://insights.sbomify.com/CVE-2026-47139/"}