CVE-2026-28481
Medium
Description
OpenClaw versions 2026.1.30 and earlier, contain an information disclosure vulnerability, patched in 2026.2.1, in the MS Teams attachment downloader (optional extension must be enabled) that leaks bearer tokens to allowlisted suffix domains. When retrying downloads after receiving 401 or 403 responses, the application sends Authorization bearer tokens to untrusted hosts matching the permissive suffix-based allowlist, enabling token theft.
SeverityMedium
CVSS6.5
Exploit probability—
ProductOpenclaw
PublishedMar 5, 2026
First seenMar 5, 2026
Weakness typeCWE-201CWE-201
How to fix
Update
- openclaw2026.2.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openclaw openclaw | v ≤ 2026.1.30 | — |
| openclawnpm | v < 2026.2.1 | 2026.2.1 |
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