CVE-2026-55232 Vvveb: Server-side request forgery in Vvveb via IPv6 bypass of validateUrl() in editor oEmbed proxy
An authenticated admin can bypass SSRF protections using IPv6 to read internal services and cloud metadata via the oEmbed proxy.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55232?
CVE-2026-55232 is a high-severity server-side request forgery vulnerability in givanz Vvveb, published on 1 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to version 1.0.8.6, Vvveb's SSRF guard resolves a host with an IPv4-only function and never inspects IPv6, so any host that lacks an A record passes a private-range check. Editor oEmbed proxy fetches an attacker-supplied URL server side and reflects a response body, so an authenticated admin-panel user (default role site_admin or higher) can read internal-only services and cloud metadata, including IAM credentials, using an IPv6 literal or a domain that carries only an AAAA record. This issue has been patched in version 1.0.8.6.
Weakness: CWE-918
Which versions are affected by CVE-2026-55232?
How do I fix CVE-2026-55232?
No fix has been published for CVE-2026-55232 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-55232 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55232 exists.
Sources
Also known as GHSA-r6g4-5m3x-xrqj.