CVE-2026-28476 MEDIUM

CVE-2026-28476: OpenClaw < 2026.2.14 - Server-Side Request Forgery in Tlon Extension Authentication

Vendor Openclaw
Product OpenClaw
Weakness CWE-918 · SSRF
Published March 5, 2026
Last update March 9, 2026
View on NVD All CVEs

CVSS base score

6.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L

What the vulnerability does

01Description

OpenClaw versions prior to 2026.2.14 contain a server-side request forgery vulnerability in the optional Tlon Urbit extension that accepts user-provided base URLs for authentication without proper validation. Attackers who can influence the configured Urbit URL can induce the gateway to make HTTP requests to arbitrary hosts including internal addresses.

Key dates

02Disclosure timeline

March 5, 2026 CVE published
March 9, 2026 Record updated