CVE-2026-100541 OpenClaw Matrix - Authorization Bypass

OpenClaw Matrix integration (npm package @openclaw/matrix) >= 2026.2.2 and < 2026.8.1 contains an authorization bypass caused by case-insensitive normalization of user IDs, letting Matrix participants inherit privileges of other accounts, exploit requires control of colliding account identifier.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.30% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authorization Bypass
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
26 September 2026
Updated
15 October 2026
Weakness
CWE-178

Vendor fix

Upgrade to version 2026.8.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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