CVE-2026-86122

MEDIUM 5.0

Rowboat through 0.9.1 Server-Side Request Forgery via Custom MCP Server

CVSS Score

5.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-918
Vendor	rowboatlabs
Product	rowboat
Published	Sep 5, 2026
Last Updated	Sep 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

rowboatlabs / rowboat

0 ≤ 0.9.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/rowboatlabs/rowboat/issues/621 github.com: https://github.com/rowboatlabs/rowboat/blob/v0.9.1/apps/rowboat/src/application/use-cases/projects/add-custom-mcp-server.use-case.ts github.com: https://github.com/rowboatlabs/rowboat/blob/v0.9.1/apps/rowboat/src/application/lib/agents-runtime/agent-tools.ts github.com: https://github.com/rowboatlabs/rowboat vulncheck.com: https://www.vulncheck.com/advisories/rowboat-through-0.9.1-server-side-request-forgery-via-custom-mcp-server

Credits

🔍 George Chen