Input validation error in gotenberg - #VU129643
Published: May 5, 2026
Vulnerability identifier: #VU129643
CSH Severity: High
CVSS v4.0: 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-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: thecodingmachine
Affected software:
gotenberg
gotenberg
Detailed vulnerability description
The vulnerability allows a remote attacker to modify file permissions.
The vulnerability exists due to improper input validation in the ExifTool metadata tag blocklist when handling metadata fields in HTTP requests. A remote attacker can send a specially crafted request using the FilePermissions tag to modify file permissions.
The FilePermissions tag is not included in the dangerous tag blocklist.
Remediation
Install security update from vendor's website.