CVE-2026-42597

5.9 MEDIUM

Gotenberg is a Docker-powered stateless API for PDF files

Published: 2026-05-14 · Last updated: 2026-05-18

Severity and scoring

CVSS: 5.9 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE: CWE-73, CWE-918

Affected products

Vendor	Product
thecodingmachine	gotenberg

Description

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-42597
[Vendor advisory]https://github.com/gotenberg/gotenberg/security/advisories/GHSA-g924-cjx7-2rjw
[Vendor advisory]https://github.com/gotenberg/gotenberg/security/advisories/GHSA-g924-cjx7-2rjw

Related CVEs

Same vendor

CVE-2026-42596 — Gotenberg is a Docker-powered stateless API for PDF files (9.4 CRITICAL)
CVE-2026-42595 — Gotenberg is a Docker-powered stateless API for PDF files (8.6 HIGH)
CVE-2026-42594 — Gotenberg is a Docker-powered stateless API for PDF files (7.5 HIGH)
CVE-2026-42593 — Gotenberg is a Docker-powered stateless API for PDF files (5.3 MEDIUM)
CVE-2026-42592 — Gotenberg is a Docker-powered stateless API for PDF files (5.3 MEDIUM)

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