Authorization bypass through user-controlled key in OpenClaw - #VU128769
Published: May 1, 2026
Vulnerability identifier: #VU128769
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote attacker to interfere with another conversation's pending file upload.
The vulnerability exists due to authorization bypass through user-controlled key in the MS Teams file-consent invoke handler when processing fileConsent/invoke requests using an uploadId without verifying the originating conversation. A remote attacker can submit a valid uploadId within its time-to-live to interfere with another conversation's pending file upload.
The issue affects both the accept path for cross-conversation upload completion and the decline path for canceling a victim pending upload.
Remediation
Install security update from vendor's website.