CVE-2020-13128

An issue was discovered in Manolo GWTUpload 1.0.3. server/UploadServlet.java (the servlet for handling file upload) accepts a delay parameter that causes a thread to sleep. It can be abused to cause all of a server's threads to sleep, leading to denial of service.

• CWE-434

• https://github.com/manolo/gwtupload/issues/33Exploit, Third Party Advisory
• https://logicaltrust.net/blog/2020/02/gwt-upload.htmlExploit, Third Party Advisory
• https://github.com/manolo/gwtupload/issues/33Exploit, Third Party Advisory
• https://logicaltrust.net/blog/2020/02/gwt-upload.htmlExploit, Third Party Advisory

Published

May 18, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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