What is CVE-2026-42594?

CVE-2026-42594 is a high-severity vulnerability in Gotenberg, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-05-14.

How severe is CVE-2026-42594?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Gotenberg

CVE-2026-42594

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the webhook middleware spawns a goroutine that holds a reference to the request's echo.Context after the synchronous handler returns ErrAsyncProcess and Echo recyc…

Vulnerability class: Race Condition

EPSS: 0.000 (3.9th 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:N/I:N/A:H.

Affected products

Gotenberg — versions < 8.32.0
Thecodingmachine Gotenberg

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-42594?: CVE-2026-42594 is a high-severity vulnerability in Gotenberg, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-05-14.
How severe is CVE-2026-42594?: High severity. CVSS v3 base score is 7.5 out of 10.