OpenClaw: MCP loopback owner context is derived from server-issued bearer tokens
Summary
MCP loopback owner context is derived from server-issued bearer tokens.
Affected Packages / Versions
- Package: openclaw (npm)
- Affected versions: <= 2026.4.21
- Fixed version: 2026.4.22
Impact
The loopback MCP path accepted spoofable owner-context metadata from request headers, which could allow a non-owner loopback client to present itself as owner for owner-gated operations.
Fix
The MCP loopback runtime now issues separate owner and non-owner bearer tokens and derives senderIsOwner exclusively from which token authenticated the request. The spoofable sender-owner header is no longer emitted or trusted.
Fix Commit(s)
- 3cb1a56bfc9579a0f2336f9cfa12a8a744332a19
Verification
- The fix commit is contained in the public v2026.4.22 tag.
- openclaw@2026.4.22 is published on npm and the compiled package contains the fix.
- Focused regression coverage for this path passed before publication.
OpenClaw thanks @VladimirEliTokarev for reporting.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.4.22 | 2026.4.22 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-r6xh-pqhr-v4xh
- https://nvd.nist.gov/vuln/detail/CVE-2026-44118
- https://github.com/openclaw/openclaw/commit/3cb1a56bfc9579a0f2336f9cfa12a8a744332a19
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-owner-context-spoofing-via-bearer-token-header
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-284, CWE-290- Platform
- npm
- Package
openclaw- Disclosed
- 04.05.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-r6xh-pqhr-v4xh - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 588
- First → latest
- 02.2026 07.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 299
- Low 54
Disclosures per year
- 2026: 588
-
OpenClaw: MCP loopback owner context is derived from server-issued bearer tokens this entry
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