CVE-2026-28476

HIGH

8.3

Description

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.

CVE Details

CVSS v3.1 Score8.3

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/5/2026

Last Modified3/9/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-918

References

https://github.com/openclaw/openclaw/commit/bfa7d21e997baa8e3437657d59b1e296815cc1b1(disclosure@vulncheck.com)

https://github.com/openclaw/openclaw/security/advisories/GHSA-pg2v-8xwh-qhcc(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/openclaw-server-side-request-forgery-in-tlon-extension-authentication(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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