Server-side Request Forgery (SSRF) Affecting github.com/gotenberg/gotenberg/v8/pkg/modules/api package, versions >=8.29.1 <8.31.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGOTENBERGGOTENBERGV8PKGMODULESAPI-16425672
- published6 May 2026
- disclosed30 Apr 2026
- creditS-Senhaji
Introduced: 30 Apr 2026
CVE-2026-39383 (opens in a new tab)How to fix?
Upgrade github.com/gotenberg/gotenberg/v8/pkg/modules/api to version 8.31.0 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the FilterDeadline function. An attacker can force the application to make arbitrary outbound HTTP POST requests to internal or external destinations by supplying a crafted URL in the Gotenberg-Webhook-Url header. This enables internal network probing, forced POST requests to internal services, and interaction with cloud metadata endpoints, potentially exposing sensitive internal infrastructure details. The response body is not exposed.