{"answers":{"affected":"2 open source packages ship an affected version, including vm2. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44004 exists.","fix":"Upgrade vm2 to 3.11.0 or later.","what":"CVE-2026-44004 is a high-severity denial of service vulnerability in patriksimek vm2, published on 13 May 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-2026-44004 and fix it if it is affected.\n\nWhat it is: CVE-2026-44004 is a high-severity denial of service vulnerability in patriksimek vm2, published on 13 May 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-2026-44004 exists.\n\nAffected packages and fixed versions:\n- vm2 (npm): affected all versions; fixed in 3.11.0\n- vm2 (npm): affected all versions; fixed in 3.11.0\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-2026-44004/ (Markdown: https://insights.sbomify.com/CVE-2026-44004/index.md)","id":"CVE-2026-44004","markdown":"https://insights.sbomify.com/CVE-2026-44004/index.md","name":"CVE-2026-44004","record":{"aliases":["GHSA-6785-pvv7-mvg7","ROOT-APP-NPM-CVE-2026-44004"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Node.js sandbox library","requires_auth":"none","summary":"Attackers can crash the host process by exhausting memory via Buffer.alloc in vm2, bypassing timeout protections.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"vm2","vendor":"vm2_project"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1285","name":"Improper Validation of Specified Index, Position, or Offset in Input"},{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, sandboxed code can call Buffer.alloc() with an arbitrary size to allocate memory directly on the host heap. Because Buffer.alloc is a synchronous C++ native call, vm2's timeout option cannot interrupt it. A single request can exhaust host memory and crash the process with a FATAL ERROR: Reached heap limit. This vulnerability is fixed in 3.11.0.","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: Host Process OOM DoS via Buffer.alloc (Timeout Bypass)","id":"CVE-2026-44004","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"vm2: Sandbox escape","id":"CVE-2026-44005"},"packages":[{"ecosystem":"npm","fixed":["3.11.0"],"introduced":["0"],"last_affected":[],"package":"vm2","purl":null,"source":"GHSA-6785-pvv7-mvg7"},{"ecosystem":"npm","fixed":["3.11.0"],"introduced":["0"],"last_affected":[],"package":"vm2","purl":"pkg:npm/vm2","source":"GHSA-6785-pvv7-mvg7"}],"prev":{"headline":"vm2: Transformer Fast-Path Bypass Exposes Internal State Variable","id":"CVE-2026-44003"},"products":["vm2"],"published":"2026-05-13","related":[{"cvss_score":10,"headline":"vm2: Sandbox Escape","id":"CVE-2026-43997","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":10,"headline":"vm2: Sandbox escape","id":"CVE-2026-44005","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":10,"headline":"vm2: Sandbox Escape","id":"CVE-2026-44006","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":10,"headline":"vm2 Sandbox Escape vulnerability","id":"CVE-2023-29017","kev_date_added":null,"published":"2023-04-06"},{"cvss_score":10,"headline":"vm2 vulnerable to Sandbox Escape before v3.9.11","id":"CVE-2022-36067","kev_date_added":null,"published":"2022-09-06"},{"cvss_score":9.9,"headline":"vm2: NodeVM builtin allowlist bypass via `module` builtin's `Module._load` allows sandbox escape","id":"CVE-2026-43999","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":9.8,"headline":"vm2: Snabox breakout via `neutralizeArraySpeciesBatch`","id":"CVE-2026-44008","kev_date_added":null,"published":"2026-05-13"}],"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":"partial"},"state":"PUBLISHED","updated":"2026-09-07","vendors":["patriksimek"]},"summary":"Attackers can crash the host process by exhausting memory via Buffer.alloc in vm2, bypassing timeout protections.","url":"https://insights.sbomify.com/CVE-2026-44004/"}