#VU125318 Improper Handling of Case Sensitivity in gotenberg

 

#VU125318 Improper Handling of Case Sensitivity in gotenberg

Published: April 8, 2026


Vulnerability identifier: #VU125318
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-178
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
gotenberg
Software vendor:
thecodingmachine

Description

The vulnerability allows a remote attacker to write files to arbitrary paths.

The vulnerability exists due to improper handling of case sensitivity in pkg/modules/exiftool/exiftool.go when processing metadata write requests through the HTTP API. A remote attacker can send specially crafted metadata with alternate casing for dangerous pseudo-tags to write files to arbitrary paths.

Exploitation was confirmed via the unauthenticated HTTP API, and in containerized deployments the impact is limited to the container filesystem.


Remediation

Install security update from vendor's website.

External links