CVE-2026-27018 HIGH

CVE-2026-27018: Gotenberg: Chromium deny-list bypass via case-insensitive URL scheme

Vendor Gotenberg
Product gotenberg
Weakness CWE-22 · Path traversal
Published March 30, 2026
Last update March 31, 2026
View on NVD All CVEs

CVSS base score

7.8/10
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:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

Gotenberg is an API for converting document formats. Prior to version 8.29.0, the fix introduced for CVE-2024-21527 can be bypassed using mixed-case or uppercase URL schemes. This issue has been patched in version 8.29.0.

Key dates

02Disclosure timeline

March 30, 2026 CVE published
March 31, 2026 Record updated