CVE-2026-34506
Medium
Description
OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesizes wildcard sender authorization, permitting any sender in the matched team/channel to trigger replies in allowlisted Teams routes.
SeverityMedium
CVSS4.3
Exploit probability—
ProductOpenclaw
PublishedMar 31, 2026
First seenMar 31, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- openclaw openclaw2026.3.8 or later
- openclaw2026.3.8 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openclaw openclaw | v < 2026.3.8 | 2026.3.8 |
| openclawnpm | v < 2026.3.8 | 2026.3.8 |
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