OpenClaw (npm package 'openclaw') versions >= 2026.5.12 and < 2026.8.1 do not immediately invalidate Canvas HTTP authorization when a paired node is… (CVE-2026-100554)
OpenClaw npm package versions from 2026.5.12 up to but not including 2026.8.1 have a vulnerability where Canvas HTTP authorization is not immediately invalidated when a paired node is revoked. Although the WebSocket client is invalidated upon node revocation, the HTTP authorization continues to accept and renew access until WebSocket cleanup completes. This allows a revoked node to maintain access temporarily during the close grace period. The issue is resolved in version 2026.8.1. A workaround is to restart the Gateway after revoking a node with Canvas access.
AI Analysis
Technical Summary
OpenClaw versions >=2026.5.12 and <2026.8.1 do not immediately revoke Canvas HTTP authorization upon paired node revocation. While the WebSocket client is invalidated promptly, the HTTP authorization persists and can be renewed until the WebSocket close cleanup finishes. This results in a revoked node retaining Canvas capability access during the grace period. The vulnerability is fixed in version 2026.8.1. Restarting the Gateway after node revocation serves as a temporary mitigation.
Potential Impact
A revoked paired node can continue to exercise its Canvas capabilities against configured routes during the WebSocket close grace period, potentially allowing unauthorized access for a limited time. The impact is limited to confidentiality and integrity with low severity, as indicated by the CVSS score of 4.2.
Mitigation Recommendations
Upgrade OpenClaw to version 2026.8.1 or later where the issue is fixed. As a temporary workaround, restart the Gateway after revoking a node that has Canvas access to immediately invalidate HTTP authorization.
OpenClaw (npm package 'openclaw') versions >= 2026.5.12 and < 2026.8.1 do not immediately invalidate Canvas HTTP authorization when a paired node is… (CVE-2026-100554)
Description
OpenClaw npm package versions from 2026.5.12 up to but not including 2026.8.1 have a vulnerability where Canvas HTTP authorization is not immediately invalidated when a paired node is revoked. Although the WebSocket client is invalidated upon node revocation, the HTTP authorization continues to accept and renew access until WebSocket cleanup completes. This allows a revoked node to maintain access temporarily during the close grace period. The issue is resolved in version 2026.8.1. A workaround is to restart the Gateway after revoking a node with Canvas access.
CVSS v3.1
Score 4.2medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenClaw versions >=2026.5.12 and <2026.8.1 do not immediately revoke Canvas HTTP authorization upon paired node revocation. While the WebSocket client is invalidated promptly, the HTTP authorization persists and can be renewed until the WebSocket close cleanup finishes. This results in a revoked node retaining Canvas capability access during the grace period. The vulnerability is fixed in version 2026.8.1. Restarting the Gateway after node revocation serves as a temporary mitigation.
Potential Impact
A revoked paired node can continue to exercise its Canvas capabilities against configured routes during the WebSocket close grace period, potentially allowing unauthorized access for a limited time. The impact is limited to confidentiality and integrity with low severity, as indicated by the CVSS score of 4.2.
Mitigation Recommendations
Upgrade OpenClaw to version 2026.8.1 or later where the issue is fixed. As a temporary workaround, restart the Gateway after revoking a node that has Canvas access to immediately invalidate HTTP authorization.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-r8gf-76ch-pvpx
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-100554"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
Threat ID: 6ab74f2af7a7c54106e13833
Added to database: 09/26/2026, 04:50:50 UTC
Last enriched: 09/26/2026, 04:55:04 UTC
Last updated: 09/27/2026, 01:47:40 UTC
Views: 6
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