CVE-2026-73082 activepieces CVE debrief

Who should care

Defenders responsible for Activepieces deployments, especially those exposed to the internet or untrusted networks, should assess their exposure and apply the patch. Security teams managing AI workflow automation platforms need to verify if their instances are vulnerable and prioritize patching to prevent potential unauthorized network probing. Additionally, platform administrators and vulnerability management teams should review the current version and

Why it matters

CVE-2026-73082 allows authenticated users to probe network reachability; defenders should verify exposure and apply the patch to prevent potential unauthorized network probing.

• Potential unauthorized network probing
• Risk of internal service enumeration
• Possible cloud metadata endpoint exposure
• Need for verification of patch application

Technical summary

The Activepieces platform is vulnerable to unauthorized network probing due to a lack of URL validation and SSRF protection in the POST /api/v1/projects/:projectId/mcp-server/validate-agent-mcp-tool endpoint. An authenticated user can cause the server to connect to internal services, cloud metadata endpoints, or arbitrary external hosts. This issue allows potential probing of network reachability from the Activepieces host, impacting defenders' ability to ensure secure configurations. The vulnerability is fixed in version 0.82.0, which addresses the SSRF protection and URL validation issues.

Defensive priority

Defenders should prioritize verifying exposure and applying the patch to prevent potential unauthorized network probing.

Recommended defensive actions

• Verify if the Activepieces server is exposed to the internet or untrusted networks.
• Check if the current version is prior to 0.82.0 and apply the patch if necessary.
• Monitor network activity for unusual outbound connections.
• Restrict access to the POST /api/v1/projects/:projectId/mcp-server/validate-agent-mcp-tool endpoint to trusted users.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, its impact, and the fixed version. However, additional information on potential exploitation or affected systems is limited. Defenders should verify patch application and assess exposure to internal services, cloud metadata endpoints, or arbitrary external hosts. The lack of URL validation and SSRF protection in the POST /api/v1/projects/:projectId/mcp-server/validate-agent-mcp-tool endpoint allows authenticated users to probe network reachability. Evidence from the N

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.