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CVE-2026-28481

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CVE-2026-28481

Published: Mar 5, 2026

Modified: May 25, 2026

PUBLISHED

CVSS v3.1

6.5

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.

VendorProductVersions

OpenClaw

OpenClaw

affected
0 - <= 2026.1.30
unaffected
2026.2.1

Weaknesses (CWE)

CWE-201

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

References

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