CVE-2026-86122

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

MEDIUM
5
CVSS Score
Published: September 5, 2026 at 09:59 AM UTC
Updated: September 23, 2026 at 05:30 PM UTC
1 product affected across 1 vendorRowboat

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Severity
MEDIUM5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 0.9.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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