{"id":236668,"date":"2026-05-06T22:20:19","date_gmt":"2026-05-07T03:20:19","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/05\/critical-vm2-sandbox-bug-lets-attackers-execute-code-on-hosts"},"modified":"2026-05-06T22:20:19","modified_gmt":"2026-05-07T03:20:19","slug":"critical-vm2-sandbox-bug-lets-attackers-execute-code-on-hosts","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/05\/critical-vm2-sandbox-bug-lets-attackers-execute-code-on-hosts","title":{"rendered":"Critical vm2 sandbox bug lets attackers execute code on hosts"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/critical-vm2-sandbox-bug-lets-attackers-execute-code-on-hosts.jpg\"><\/a><\/p>\n<p>A critical vulnerability in the popular Node.js sandboxing library vm2 allows escaping the sandbox and executing arbitrary code on the host system.<\/p>\n<p>The security issue is tracked as CVE-2026\u201326956 and has been confirmed to impact vm2 version 3.10.4, although earlier releases may also be vulnerable. Proof-of-concept (PoC) exploit code has been published.<\/p>\n<p>In the security advisory, the maintainer says that the issue only impacts environments with Node.js 25 (confirmed on Node.js 25.6.1) that have enabled WebAssembly exception handling and JSTag support.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A critical vulnerability in the popular Node.js sandboxing library vm2 allows escaping the sandbox and executing arbitrary code on the host system. The security issue is tracked as CVE-2026\u201326956 and has been confirmed to impact vm2 version 3.10.4, although earlier releases may also be vulnerable. Proof-of-concept (PoC) exploit code has been published. In the security [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1492],"tags":[],"class_list":["post-236668","post","type-post","status-publish","format-standard","hentry","category-security"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/236668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=236668"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/236668\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=236668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=236668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=236668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}