CVSS 3.1
5.9 mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2026-42597
Medium (5.9) in thecodingmachine gotenberg. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/gotenberg/gotenberg/v8 8.32.0.
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the /forms/chromium/convert/url and /forms/chromium/screenshot/url routes accept url=file:///tmp/... from anonymous callers. The default Chromium deny-list intentionally exempts file:///tmp/ so HTML/Markdown routes can load their own request-local assets, and those routes apply a per-request AllowedFilePrefixes guard to scope the read. The URL routes never set AllowedFilePrefixes, so the scope guard silently skips. Alice enumerates /tmp/, walks Gotenberg's per-request working directories, and reads the raw source files of other in-flight conversions as rendered PDF output. This vulnerability is fixed in 8.32.0.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-73, CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Affected
- thecodingmachine:gotenberg
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-g924-cjx7-2rjw | Go | github.com/gotenberg/gotenberg/v8 | <8.32.0 | 8.32.0 |
| GHSA-g924-cjx7-2rjw | Go | github.com/gotenberg/gotenberg/v7 | <=7.10.2 | no fix published |
| GO-2026-5395 | Go | github.com/gotenberg/gotenberg/v7 | all versions | no fix published |
| GO-2026-5395 | Go | github.com/gotenberg/gotenberg/v8 | <8.32.0 | 8.32.0 |