Path traversal in gotenberg - CVE-2026-44829
Published: November 9, 2026
Vulnerability identifier: #VU162918
CSH Severity: High
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-44829
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an unauthenticated remote attacker to write files outside a victim's extraction directory when the victim extracts a generated ZIP archive using a vulnerable Windows extractor.
The vulnerability exists due to Gotenberg's Linux filename sanitization preserving Windows path separators and parent-directory traversal sequences in uploaded filenames used as ZIP entry names. An unauthenticated remote attacker can submit crafted multipart filenames to a multi-output route to produce an archive containing traversal paths.
Affected software
gotenberg
How to mitigate CVE-2026-44829
Install security update from vendor's website.
gotenberg - update to 8.33.0