Vulnerability DatabaseCVE-2026-86122
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CVE-2026-86122
Published:September 05, 2026
Updated:September 22, 2026
Rowboat through 0.9.1 fails to validate custom MCP server and webhook URLs, allowing authenticated users to configure arbitrary destinations. Attackers can point these URLs at internal services and cloud metadata endpoints to perform server-side request forgery and enumerate internal network topology.
Related Resources (7)
https://nvd.nist.gov/vuln/detail/CVE-2026-86122
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86122.json
https://github.com/rowboatlabs/rowboat
https://github.com/rowboatlabs/rowboat/blob/v0.9.1/apps/rowboat/src/application/use-cases/projects/add-custom-mcp-server.use-case.ts
https://www.vulncheck.com/advisories/rowboat-through-0.9.1-server-side-request-forgery-via-custom-mcp-server
https://github.com/rowboatlabs/rowboat/blob/v0.9.1/apps/rowboat/src/application/lib/agents-runtime/agent-tools.ts
https://github.com/rowboatlabs/rowboat/issues/621
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)
CWE-918
EPSS
Base Score:
0.23