CVE-2023-29401

Name: CVE-2023-29401
Creator: NVD / NIST
Published: 2023-06-08T21:15:16.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2023-29401 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS Probability

0.48%

37.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-494

Affected Software

Vendor	Product	Versions
Gin-Gonic	Gin	>= 1.3.1-0.20190301021747-ccb9e902956d, < 1.9.1

References

https://github.com/gin-gonic/gin/issues/3555Exploit, Issue Tracking
https://github.com/gin-gonic/gin/pull/3556Issue Tracking, Patch
https://github.com/gin-gonic/gin/releases/tag/v1.9.1Release Notes
https://pkg.go.dev/vuln/GO-2023-1737Third Party Advisory
https://github.com/gin-gonic/gin/issues/3555Exploit, Issue Tracking
https://github.com/gin-gonic/gin/pull/3556Issue Tracking, Patch
https://github.com/gin-gonic/gin/releases/tag/v1.9.1Release Notes
https://pkg.go.dev/vuln/GO-2023-1737Third Party Advisory

Timeline

Published: Jun 8, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-29401?

How severe is CVE-2023-29401?

CVE-2023-29401 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29401?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-29401?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST