SSRF in Gotenberg
CVE-2026-40280
Gotenberg is an API-based document conversion tool. In versions 8.30.1 and earlier, the default private-IP deny-lists for the --webhook-deny-list and --api-download-from-deny-list flags use a case-sensitive regular expression (^https?://)…
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.000 (2.5th 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 <= 8.30.1
- Thecodingmachine Gotenberg
Weakness classification (CWE)
References
- https://github.com/gotenberg/gotenberg/security/advisories/GHSA-5q7p-7jgv-ww56 (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- https://github.com/gotenberg/gotenberg/commit/3f01ca18d3cc21375a1e2da4b5a3f261c8548e47 (Patch, x_refsource_MISC)
- https://github.com/advisories/GHSA-jjwv-57xh-xr6r (x_refsource_MISC, Not Applicable)
Frequently asked questions
- What is CVE-2026-40280?
- CVE-2026-40280 is a high-severity vulnerability in Gotenberg, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2026-05-05.
- How severe is CVE-2026-40280?
- High severity. CVSS v3 base score is 7.5 out of 10.