{"id":15165,"date":"2026-09-04T19:02:29","date_gmt":"2026-09-04T11:02:29","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-45713"},"modified":"2026-09-04T19:02:29","modified_gmt":"2026-09-04T11:02:29","slug":"cve-2026-45713","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-45713","title":{"rendered":"CVE-2026-45713 [HIGH] &#8211; Mailpit is an email testing tool and API for developers. Prior to version 1.30.0, the Mail"},"content":{"rendered":"<p>Mailpit is an email testing tool and API for developers. Prior to version 1.30.0, the Mailpit SMTP server has a Server.MaxSize int field that controls the maximum allowed DATA payload size, but the field is never assigned anywhere outside test code, leaving it at Go&#8217;s zero value (0 \u21d2 &#8220;no limit&#8221;). The same applies to the HTTP \/api\/v1\/send endpoint, whose request body is decoded with json.NewDecoder(r.Body) and no http.MaxBytesReader. Because Mailpit&#8217;s default listeners bind [::]:1025 (SMTP) and [::]:8025 (HTTP), with no authentication required on either, a single network-reachable attacker can push an arbitrarily large message into Mailpit and watch RAM consumption spike with a ~7-10\u00d7 amplification factor (raw frame \u2192 enmime envelope tree \u2192 search-text index \u2192 zstd-encoded write to SQLite). Repeating the attack \u2014 or running it concurrently from multiple connections \u2014 drives the process to OOM-kill. Version 1.30.0 contains a patch.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mailpit is an email testing tool and API for developers. Prior to version 1.30.0, the Mailpit SMTP server has a Server.MaxSize int field that controls the maximum allowed DATA payload size, but the fi<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-15165","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/15165","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=15165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}