CVE-2026-35458 PUBLISHED

Gotenberg has a ReDoS via extraHttpHeaders scope feature

Assigner: GitHub_M
Reserved: 02.04.2026 Published: 07.04.2026 Updated: 07.04.2026

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.

Metrics

CVSS 4.0

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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	gotenberg
Product	gotenberg
Versions	Version <= 8.29.1 is affected

References

https://github.com/gotenberg/gotenberg/security/advisories/GHSA-fmwg-qcqh-m992

Problem Types

CWE-1333: Inefficient Regular Expression Complexity CWE