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NVD Vulnerability Details :
CVE-2026-42421
Analyzed
More InfoOfficial Page
Source-disclosure@vulncheck.com
View Known Exploited Vulnerability (KEV) details
Published At-28 Apr, 2026 | 19:37
Updated At-30 Apr, 2026 | 14:04

OpenClaw before 2026.4.8 contains a session management vulnerability where existing WebSocket sessions survive shared gateway token rotation. Attackers can maintain unauthorized access to WebSocket connections after token rotation by exploiting the failure to disconnect existing shared-token sessions.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.02.3LOW
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/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
Primary3.15.4MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Type: Secondary
Version: 4.0
Base score: 2.3
Base severity: LOW
Vector:
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/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
Type: Primary
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CPE Matches
OpenClaw
openclaw
>>openclaw>>Versions before 2026.4.8(exclusive)
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Weaknesses
CWE IDTypeSource
CWE-613Primarydisclosure@vulncheck.com
CWE ID: CWE-613
Type: Primary
Source: disclosure@vulncheck.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5disclosure@vulncheck.com
Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22wdisclosure@vulncheck.com
Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-websocket-session-persistence-via-shared-gateway-token-rotationdisclosure@vulncheck.com
Third Party Advisory
Hyperlink: https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5
Source: disclosure@vulncheck.com
Resource:
Patch
Hyperlink: https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3f-885m-v22w
Source: disclosure@vulncheck.com
Resource:
Vendor Advisory
Hyperlink: https://www.vulncheck.com/advisories/openclaw-websocket-session-persistence-via-shared-gateway-token-rotation
Source: disclosure@vulncheck.com
Resource:
Third Party Advisory
Change History
0Changes found
Details not found