CVE-2026-19957 graphlit graphlit-mcp-server ssrf-test Endpoint tools.ts fetch server-side request forgery
Remote attackers can exploit a server-side request forgery vulnerability in the graphlit-mcp-server library 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-2026-19957?
CVE-2026-19957 is a medium-severity server-side request forgery vulnerability in graphlit-mcp-server, published on 16 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in graphlit graphlit-mcp-server 1.0.1. This affects the function fetch of the file src/tools.ts of the component ssrf-test Endpoint. Such manipulation of the argument url leads to server-side request forgery. The attack may be launched remotely. The exploit is publicly available and might be used. 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-2026-19957?
How do I fix CVE-2026-19957?
No fix has been published for CVE-2026-19957 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-2026-19957 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19957 exists.
Sources
Also known as GHSA-28cc-rvx4-c58g.