CVE-2026-118172: Strapi Core webhook semi-blind SSRF via redirect

CVE-2026-118172 · Severity: info · Published 2026-10-27

Strapi's webhook dispatcher automatically follows HTTP redirects without validating whether the target is a private or local network address. An attacker can craft a webhook that redirects to internal services, allowing them to probe or interact with systems that should not be accessible, and receive error messages that leak information about those systems.

Technologies: Strapi. Vendors: Strapi.

Quick answers

Is CVE-2026-118172 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-118172 being exploited in the wild.
How severe is CVE-2026-118172?
Informational severity, published 27 October 2026.
Which products and versions are affected?
Strapi prior to fix version unknown.
Is there a fix for CVE-2026-118172?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-118172 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-118172?
Check whether you run Strapi at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a semi-blind server-side request forgery (SSRF) in the webhook runner component. The dispatcher lacks post-redirect IP resolution and does not enforce RFC1918 or link-local boundary checks. Non-2xx responses from target endpoints are reflected back to the caller, enabling information disclosure about internal services through error messages.

Affected products

  • Strapi Strapi prior to fix version unknown

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.