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: 0.000 (9.7th 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
- https://github.com/gotenberg/gotenberg/security/advisories/GHSA-jjwv-57xh-xr6r (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- https://github.com/gotenberg/gotenberg/commit/06b2b2e10c52b58135edbfe82e94d599eb0c5a11 (Patch, x_refsource_MISC)
- https://github.com/gotenberg/gotenberg/commit/8625a4e899eb75e6fcf46d28394334c7fd79fff5 (Patch, x_refsource_MISC)
- https://github.com/gotenberg/gotenberg/releases/tag/v8.29.0 (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.