What’s Vulnerable › Vulnerabilities

CVE-2026-73082: Activepieces: Server-side request forgery in MCP tool validation endpoint

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-11 · updated 2026-09-09
• Weakness: CWE-200

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.

Affected products

• activepieces: before 0.82.0

References

• https://github.com/activepieces/activepieces/commit/d385079cf4a9f35ddf61ba68ecda6ac8d64cf9e1
• https://github.com/activepieces/activepieces/pull/12721
• https://github.com/activepieces/activepieces/releases/tag/0.82.0
• https://github.com/activepieces/activepieces/security/advisories/GHSA-7qx9-q4xx-rh59

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