CVE-2026-35458 | Gotenberg is an API for converting document formats. In 8.29… | CVSS 9.8 CRITICAL

Description

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.

Metadata

CVE ID: CVE-2026-35458
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-04-02 19:25 UTC
Published: 2026-04-07 14:24 UTC
Last updated: 2026-04-09 14:20 UTC
Primary CWE: CWE-1333
CWE-1333: Inefficient Regular Expression Complexity
Vendor / Product: gotenberg / gotenberg
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
gotenberg	gotenberg	—	<= 8.29.1

Weakness (CWE)

CWE	Source	Description
CWE-1333	cna	CWE-1333: Inefficient Regular Expression Complexity

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.7	HIGH	4.0	cna	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

References (1)

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