CVE-2026-40045

OpenClaw < 2026.4.2 - Cleartext Credential Transmission via Unencrypted WebSocket Gateway Endpoints

State: Published
Severity: 5.9 Medium
Published: Apr 20, 2026
Updated: Apr 21, 2026
Reserved: Apr 8, 2026

Description

OpenClaw before 2026.4.2 accepts non-loopback cleartext ws:// gateway endpoints and transmits stored gateway credentials over unencrypted connections. Attackers can forge discovery results or craft setup codes to redirect clients to malicious endpoints, disclosing plaintext gateway credentials.

Scores

CVSS	Score	Vector	Source
4.0	5.9 Medium	CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	5.7 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-319 Cleartext Transmission of Sensitive Information

Affected Products

Product	Versions
OpenClawOpenClaw	before 2026.4.2Affected 2026.4.2Not affected

References

GitHub Security Advisory (GHSA-83f3-hh45-vfw9)vendor-advisory
Patch Commitpatch
VulnCheck Advisory: OpenClaw < 2026.4.2 - Cleartext Credential Transmission via Unencrypted WebSocket Gateway Endpointsthird-party-advisory

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