{"id":6143,"date":"2026-09-04T18:48:21","date_gmt":"2026-09-04T10:48:21","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-73291"},"modified":"2026-09-04T18:48:21","modified_gmt":"2026-09-04T10:48:21","slug":"cve-2026-73291","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-73291","title":{"rendered":"CVE-2026-73291 [HIGH] &#8211; Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby."},"content":{"rendered":"<p>Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. Prior to version 3.4.0, Seerr&#8217;s ImageProxy in server\/lib\/imageproxy.ts uses the upstream ETag and Content-Type response headers to build a cache filename for the unauthenticated GET \/avatarproxy\/:jellyfinUserId route, allowing a malicious or compromised Jellyfin or Emby server, or a man-in-the-middle attacker on a plaintext media-server connection, to supply traversal sequences that path.join and fs.writeFile normalize outside the cache directory, overwrite \/app\/dist\/index.js or other files, and execute code as the node user after a container restart. This issue is fixed in version 3.4.0.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. Prior to version 3.4.0, Seerr&#8217;s ImageProxy in server\/lib\/imageproxy.ts uses the upstream ETag and Content-Type<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6143","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6143","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=6143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}