CVE-2026-40045

5.9 mediumEPSS 0.1%

Medium (5.9) in openclaw openclaw. EPSS 0.1% chance of exploitation in the next 30 days. Fixed in openclaw 2026.4.2.

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.

Severity

CVSS 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

CVSS 3.1

5.7 medium

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

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-31)
CWE: CWE-319
Published: 2026-04-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

openclaw:openclaw

Packages (OSV)

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-83f3-hh45-vfw9	npm	openclaw	<2026.4.2	2026.4.2

References

https://github.com/openclaw/openclaw/commit/a941a4fef9bc43b2973c92d0dcff5b8a426210c5
https://github.com/openclaw/openclaw/security/advisories/GHSA-83f3-hh45-vfw9
https://www.vulncheck.com/advisories/openclaw-cleartext-credential-transmission-via-unencrypted-websocket-gateway-endpoints

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