Critical 10.0Published May 6, 2026

CVE-2026-40281Gotenberg vulnerable to argument injection via newlines in ExifTool metadata values

Updated under an hour ago (Oct 26, 2026, 11:20 AM ET)

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Every CVE for gotenberg

Exploited in the last 30 days

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.

CVSS: 10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
Weakness (CWE): CWE-88
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: May 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

gotenberg gotenberg gotenberg:gotenberg (from the name)	through 8.30.1	CNA record
thecodingmachine gotenberg thecodingmachine:gotenberg	before 8.31.0	NVD

References

https://github.com/gotenberg/gotenberg/security/advisories/GHSA-q7r4-hc83-hf2qx-refsource-confirm, exploit, patch, vendor-advisory
https://github.com/gotenberg/gotenberg/commit/405f1069c026bb08f319fb5a44e5c67c33208318x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.