CVE-2026-35458 HIGH

CVE-2026-35458: Gotenberg has a ReDoS via extraHttpHeaders scope feature

Vendor Gotenberg
Product gotenberg
Weakness CWE-1333
Published April 7, 2026
Last update April 9, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Gotenberg is an API for converting document formats. In 8.29.1 and earlier, Gotenberg uses dlclark/regexp2 to compile user-supplied scope patterns without setting a proper timeout. Users with access to features using this logic can hang workers indefinitely.

Key dates

02Disclosure timeline

April 7, 2026 CVE published
April 9, 2026 Record updated