CVE-2026-73082 Activepieces: Server-side request forgery in MCP tool validation endpoint
An authenticated user can trigger server-side requests to internal or external hosts via the MCP tool validation endpoint, potentially exposing internal network details.
- 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-2026-73082?
CVE-2026-73082 is a medium-severity server-side request forgery vulnerability in activepieces, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Activepieces is an open source AI workflow automation platform. Prior to 0.82.0, the POST /api/v1/projects/:projectId/mcp-server/validate-agent-mcp-tool endpoint makes an outbound HTTP or SSE request to a user-supplied serverUrl without URL validation or SSRF protection. An authenticated user can cause the Activepieces server to connect to internal services, cloud metadata endpoints, or arbitrary external hosts and probe network reachability from the Activepieces host. This issue is fixed in version 0.82.0.
Which versions are affected by CVE-2026-73082?
How do I fix CVE-2026-73082?
No fix has been published for CVE-2026-73082 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-2026-73082 being exploited?
There is no known exploitation of CVE-2026-73082 in the wild and no public exploit code.
Sources
Also known as GHSA-7qx9-q4xx-rh59.