CVE-2026-40281
CRITICALGotenberg vulnerable to argument injection via newlines in ExifTool metadata values
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-40281. PoCs published by ByteWraith1.
AI-analyzed exploit summary The repository claims to exploit CVE-2026-40281 in Gotenberg PDF API via metadata injection but lacks actual exploit code, instead redirecting users to an external download link (tinyurl).
Description
Gotenberg is a Docker-powered stateless API for PDF files. In versions 8.30.1 and earlier, the metadata write endpoint validates metadata keys for control characters but leaves metadata values unsanitized. A newline character in a metadata value splits the ExifTool stdin line into two separate arguments, allowing injection of arbitrary ExifTool pseudo-tags such as -FileName, -Directory, -SymLink, and -HardLink. This is a bypass of the incomplete key-sanitization fix introduced in v8.30.1. An unauthenticated attacker can rename or move any PDF being processed to an arbitrary path in the container filesystem, overwrite arbitrary files, or create symlinks and hard links at arbitrary paths.
Exploits (1)
The repository claims to exploit CVE-2026-40281 in Gotenberg PDF API via metadata injection but lacks actual exploit code, instead redirecting users to an external download link (tinyurl).
References (2)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H