CVE-2023-29401: Gin-Gonic Gin

Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days.

The filename parameter of the Context.FileAttachment function is not properly sanitized. A maliciously crafted filename can cause the Content-Disposition header to be sent with an unexpected filename value or otherwise modify the Content-Disposition header. For example, a filename of "setup.bat";x=.txt" will be sent as a file named "setup.bat". If the FileAttachment function is called with names provided by an untrusted source, this may permit an attacker to cause a file to be served with a name different than provided. Maliciously crafted attachment file name can modify the Content-Disposition header.

Affected products

• Gin-Gonic Gin: from 1.3.1-0.20190301021747-ccb9e902956d, before 1.9.1 (fixed in 1.9.1)

Published 2023-06-08. Last modified 2026-06-17.