Path Traversal in Gotenberg
CVE-2026-27018
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.005 (41.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Gotenberg — versions < 8.29.0
- Thecodingmachine Gotenberg
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-27018?
- CVE-2026-27018 is a high-severity vulnerability in Gotenberg, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-03-30.
- How severe is CVE-2026-27018?
- High severity. CVSS v3 base score is 7.5 out of 10.