CVE-2026-28481

MEDIUM
2026-03-05 [email protected] GHSA-7vwx-582j-j332
6.5
CVSS 3.1
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CVSS 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

Lifecycle Timeline

3
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
CVE Published
Mar 05, 2026 - 22:16 nvd
MEDIUM 6.5

Tags

Information Disclosure Openclaw

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.

Analysis

OpenClaw versions 2026.1.30 and earlier leak authentication bearer tokens to untrusted domains when the optional MS Teams attachment downloader extension is enabled, due to overly permissive suffix-based domain allowlisting during download retries. An attacker could harvest these tokens from allowed domains to compromise authenticated sessions. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

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CVE-2026-28481 vulnerability details – vuln.today
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