CVE-2026-28476

HIGH 8.3

OpenClaw < 2026.2.14 - Server-Side Request Forgery in Tlon Extension Authentication

CVSS Score

8.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-918
Vendor	openclaw
Product	openclaw
Published	Mar 5, 2026
Last Updated	Mar 9, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

OpenClaw / OpenClaw

0 < 2026.2.14

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-pg2v-8xwh-qhcc github.com: https://github.com/openclaw/openclaw/commit/bfa7d21e997baa8e3437657d59b1e296815cc1b1 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-server-side-request-forgery-in-tlon-extension-authentication

Credits

🔍 Peyton Kennedy (@p80n-sec)