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CVE-2026-40281

CRITICAL Exploitation: PoC
10.0
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-40281
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-04-10 20:22 UTC
Published
2026-05-06 20:46 UTC
Last updated
2026-05-07 12:33 UTC
Primary CWE
CWE-88
CWE-88: Improper Neutralization of Argument Delimiters in a …
Vendor / Product
gotenberg / gotenberg
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
gotenberg gotenberg — <= 8.30.1
Weakness (CWE)
CWESourceDescription
CWE-88 cna CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
References (2)
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