CVE-2026-19340 anubissbe ProjectHub-Mcp Webhooks API complete_backend.js server-side request forgery
Remote attackers can exploit a server-side request forgery vulnerability in the Webhooks API of ProjectHub-Mcp to access internal resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19340?
CVE-2026-19340 is a medium-severity server-side request forgery vulnerability in anubissbe ProjectHub-Mcp, published on 9 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in anubissbe ProjectHub-Mcp up to 5.0.0. This affects an unknown function of the file backend-fix/complete_backend.js of the component Webhooks API. This manipulation of the argument url causes server-side request forgery. Remote exploitation of the attack is possible. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-918
Which versions are affected by CVE-2026-19340?
How do I fix CVE-2026-19340?
No fix has been published for CVE-2026-19340 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-2026-19340 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19340 exists.
Sources
Also known as GHSA-qp9j-gfjj-6h3v.