{"id":43844,"date":"2026-10-21T12:36:50","date_gmt":"2026-10-21T04:36:50","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2021-48019"},"modified":"2026-10-21T12:36:50","modified_gmt":"2026-10-21T04:36:50","slug":"cve-2021-48019","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2021-48019","title":{"rendered":"CVE-2021-48019 [MEDIUM] &#8211; Vyper before 0.2.9 deploys forwarder proxies through the built-in create_forwarder_to func"},"content":{"rendered":"<p>Vyper before 0.2.9 deploys forwarder proxies through the built-in create_forwarder_to function that report a fixed 4096-byte RETURNDATASIZE rather than the actual return data size. Calls through these proxies can yield corrupted data when a function returns more than 4096 bytes without return data sanitation, and fail strict return-size checks such as SafeERC20.safeTransfer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vyper before 0.2.9 deploys forwarder proxies through the built-in create_forwarder_to function that report a fixed 4096-byte RETURNDATASIZE rather than the actual return data size. Calls through these<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-43844","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/43844","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=43844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=43844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=43844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}