CVE-2026-19040 MissionSquad mcp-api dcrClients.ts server-side request forgery
Remote attackers can exploit a server-side request forgery flaw in MissionSquad mcp-api to access internal resources or bypass security controls.
- 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-2026-19040?
CVE-2026-19040 is a medium-severity server-side request forgery vulnerability in MissionSquad mcp-api, published on 6 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in MissionSquad mcp-api up to 1.11.9. The affected element is an unknown function of the file src/services/dcrClients.ts. Executing a manipulation can lead to server-side request forgery. The attack may be performed from remote. Upgrading to version 1.11.10 is sufficient to fix this issue. This patch is called f068ab4ad6f0907ac7001b995588c2673f11a755. You should upgrade the affected component.
Weakness: CWE-918
Which versions are affected by CVE-2026-19040?
How do I fix CVE-2026-19040?
No fix has been published for CVE-2026-19040 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-2026-19040 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19040 exists.
Sources
Also known as GHSA-p5w2-mr8m-c9xj.