{"id":13109,"date":"2026-09-04T18:59:53","date_gmt":"2026-09-04T10:59:53","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-55418"},"modified":"2026-09-04T18:59:53","modified_gmt":"2026-09-04T10:59:53","slug":"cve-2026-55418","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-55418","title":{"rendered":"CVE-2026-55418 [HIGH] &#8211; FastGPT is an open source AI knowledge base platform. Prior to v4.15.0-beta5, two FastGPT"},"content":{"rendered":"<p>FastGPT is an open source AI knowledge base platform. Prior to v4.15.0-beta5, two FastGPT file handlers authorize an unrelated resource and then sign or read an S3 object using a key taken directly from the request, without checking that the key belongs to the caller&#8217;s team. Because S3 object keys are global within the bucket and carry the tenant id only as a path segment, an attacker can supply another team&#8217;s key and obtain its file contents through the chat-file presign endpoint or dataset preview endpoint. This issue is fixed in version v4.15.0-beta5.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>FastGPT is an open source AI knowledge base platform. Prior to v4.15.0-beta5, two FastGPT file handlers authorize an unrelated resource and then sign or read an S3 object using a key taken directly fr<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-13109","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/13109","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=13109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}