What is CVE-2026-86122?

CVE-2026-86122 is a medium-severity vulnerability in Rowboatlabs Rowboat, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-09-05.

How severe is CVE-2026-86122?

Medium severity. CVSS v3 base score is 5.0 out of 10.

SSRF in Rowboatlabs Rowboat

CVE-2026-86122

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

Affected products

Rowboatlabs Rowboat

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-86122?: CVE-2026-86122 is a medium-severity vulnerability in Rowboatlabs Rowboat, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-09-05.
How severe is CVE-2026-86122?: Medium severity. CVSS v3 base score is 5.0 out of 10.