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TI-2026-27588 Aliases CVE-2026-35458GHSA-fmwg-qcqh-m992

Gotenberg has a ReDoS via extraHttpHeaders scope feature

Priority HIGH 79CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-1333.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00517 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/gotenberg/gotenberg/v8 (Go): 8.30.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
gotenberggotenbergup to 8.29.1—No fix listedCNA
—github.com/gotenberg/gotenberg/v8 (Go)before 8.30.08.30.0Patch availableGHSA-fmwg-qcqh-m992
  • gotenberg Vendorgotenberg Affected up to 8.29.1 Fixed in — No fix listed CNA
  • github.com/gotenberg/gotenberg/v8 (Go) Vendor— Affected before 8.30.0 Fixed in 8.30.0 Patch available GHSA-fmwg-qcqh-m992

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:thecodingmachine:gotenberg:*:*:*:*:*:*:*:*before 8.29.1Vulnerablegotenberg
  • cpe:2.3:a:thecodingmachine:gotenberg:*:*:*:*:*:*:*:* Versions before 8.29.1 Vulnerable ·gotenberg

Remediation

  • Fix · GHSA-fmwg-qcqh-m992 github.com/gotenberg/gotenberg/v8 (Go) Fixed in 8.30.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35458
  2. 2026-10-03 Alias added: GHSA-fmwg-qcqh-m992

References

Exploit 1

Advisory 1

Other 2

  • TI-2026-30869 Gotenberg: Unauthenticated RCE via ExifTool Metadata Key Injection CVSS 3.1CRITICAL 9.8
  • TI-2026-29063 Gotenberg vulnerable to argument injection via newlines in ExifTool metadata values CVSS 3.1CRITICAL 10.0
  • TI-2026-30876 Gotenberg: Unauthenticated SSRF via default deny-list bypass in downloadFrom and webhook CVSS 3.1CRITICAL 9.4
  • TI-2026-30875 Gotenberg: Server-Side Request Forgery via Chromium URL Endpoint with Redirect-Based Deny-List Bypass CVSS 3.1HIGH 8.6
  • TI-2026-30871 Gotenberg: Server-Side Request Forgery (SSRF) in github.com/gotenberg/gotenberg/v8 CVSS 3.1HIGH 8.2
  • TI-2026-30870 Gotenberg: ExifTool group-prefix syntax bypasses dangerous-tag blocklist CVSS 3.1HIGH 8.2
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences