GHSA-R8GF-76CH-PVPX
Vulnerability from github – Published: 2026-09-26 03:30 – Updated: 2026-09-26 03:30OpenClaw (npm package 'openclaw') versions >= 2026.5.12 and < 2026.8.1 do not immediately invalidate Canvas HTTP authorization when a paired node is revoked. Node revocation invalidates the WebSocket client, but Canvas HTTP authorization continues to accept and renew the previously granted capability until WebSocket close cleanup completes. As a result, a revoked paired node can continue exercising its Canvas capability against the capability's configured routes during the close grace period. The issue is fixed in 2026.8.1; as a workaround, restart the Gateway after revoking a node that has Canvas access.
{
"affected": [],
"aliases": [
"CVE-2026-100554"
],
"database_specific": {
"cwe_ids": [
"CWE-613"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-26T03:17:01Z",
"severity": "LOW"
},
"details": "OpenClaw (npm package \u0027openclaw\u0027) versions \u003e= 2026.5.12 and \u003c 2026.8.1 do not immediately invalidate Canvas HTTP authorization when a paired node is revoked. Node revocation invalidates the WebSocket client, but Canvas HTTP authorization continues to accept and renew the previously granted capability until WebSocket close cleanup completes. As a result, a revoked paired node can continue exercising its Canvas capability against the capability\u0027s configured routes during the close grace period. The issue is fixed in 2026.8.1; as a workaround, restart the Gateway after revoking a node that has Canvas access.",
"id": "GHSA-r8gf-76ch-pvpx",
"modified": "2026-09-26T03:30:25Z",
"published": "2026-09-26T03:30:25Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-g697-vv6h-r8hv"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100554"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-canvas-capability-revocation-bypass"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:H/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": "CVSS_V4"
}
]
}
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