{"id":4205,"date":"2026-09-04T18:43:06","date_gmt":"2026-09-04T10:43:06","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-49143"},"modified":"2026-09-04T18:43:06","modified_gmt":"2026-09-04T10:43:06","slug":"cve-2026-49143","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-49143","title":{"rendered":"CVE-2026-49143 [HIGH] &#8211; BrowserStack Runner through 0.9.5 contains a remote code execution vulnerability in the \/_"},"content":{"rendered":"<p>BrowserStack Runner through 0.9.5 contains a remote code execution vulnerability in the \/_log HTTP handler that allows unauthenticated network-adjacent attackers to execute arbitrary code by submitting crafted JSON request bodies to the handler, which passes user-supplied data to vm.runInNewContext() combined with eval(). Attackers can escape the Node.js vm sandbox by leveraging a host-context Function reference through util.format to access the host process via this.constructor.constructor, achieving full remote code execution on the underlying system without any authentication.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>BrowserStack Runner through 0.9.5 contains a remote code execution vulnerability in the \/_log HTTP handler that allows unauthenticated network-adjacent attackers to execute arbitrary code by submittin<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-4205","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/4205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}