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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.

PUBLISHED Reserved 2026-04-08 | Published 2026-04-20 | Updated 2026-04-21 | Assigner VulnCheck




MEDIUM: 5.9CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

MEDIUM: 5.7CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Problem types

CWE-319: Cleartext Transmission of Sensitive Information

Product status

Default status
unaffected

Any version before 2026.4.2
affected

2026.4.2 (semver)
unaffected

Credits

zsx (@zsxsoft) reporter

KeenSecurityLab finder

References

github.com/...enclaw/security/advisories/GHSA-83f3-hh45-vfw9 (GitHub Security Advisory (GHSA-83f3-hh45-vfw9)) vendor-advisory

github.com/...ommit/a941a4fef9bc43b2973c92d0dcff5b8a426210c5 (Patch Commit) patch

www.vulncheck.com/...unencrypted-websocket-gateway-endpoints (VulnCheck Advisory: OpenClaw < 2026.4.2 - Cleartext Credential Transmission via Unencrypted WebSocket Gateway Endpoints) third-party-advisory

cve.org (CVE-2026-40045)

nvd.nist.gov (CVE-2026-40045)

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