CVE-2026-34503

| EUVD-2026-17469 HIGH
2026-03-31 VulnCheck GHSA-2pr2-hcv6-7gwv
8.6
CVSS 4.0
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CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
Analysis Generated
Mar 31, 2026 - 14:30 vuln.today
EUVD ID Assigned
Mar 31, 2026 - 14:30 euvd
EUVD-2026-17469
Patch Released
Mar 31, 2026 - 14:30 nvd
Patch available
CVE Published
Mar 31, 2026 - 14:10 nvd
HIGH 8.6

Description

OpenClaw before 2026.3.28 fails to disconnect active WebSocket sessions when devices are removed or tokens are revoked. Attackers with revoked credentials can maintain unauthorized access through existing live sessions until forced reconnection.

Analysis

WebSocket session fixation in OpenClaw before version 2026.3.28 enables attackers to maintain unauthorized access after credential revocation. The vulnerability permits unauthenticated remote attackers (CVSS PR:N) to exploit persistent WebSocket connections that fail to terminate when device tokens are revoked, resulting in high confidentiality impact. …

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Remediation

Within 24 hours: Identify all OpenClaw deployments and their current versions via asset inventory and vendor advisories. Within 7 days: Test vendor-released patch version 2026.3.28 or later in a staging environment and schedule maintenance windows for production systems. …

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Priority Score

43
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +43
POC: 0

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CVE-2026-34503 vulnerability details – vuln.today

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