Medium severity · published Mar 5, 2026
CVE-2026-28476
OpenClaw < 2026.2.14 - Server-Side Request Forgery in Tlon Extension Authentication
5.8
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.2.14 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28476
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28476
Patch
https://github.com/openclaw/openclaw/commit/bfa7d21e997baa8e3437657d59b1e296815cc1b1
Vendor Advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-pg2v-8xwh-qhcc
Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-server-side-request-forgery-in-tlon-extension-authentication
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