CVE-2026-41405
OpenClaw < 2026.3.31 - Resource Exhaustion via Unauthenticated MS Teams Webhook Body Parsing
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
OpenClaw before 2026.3.31 parses MS Teams webhook request bodies before performing JWT validation, allowing unauthenticated attackers to trigger resource exhaustion. Remote attackers can send malicious Teams webhook payloads to exhaust server resources by bypassing authentication checks.
| CWE | CWE-408 |
| Vendor | openclaw |
| Product | openclaw |
| Published | Apr 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
OpenClaw / OpenClaw
0 < 2026.3.31
References
github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-p464-m8x6-vhv8 github.com: https://github.com/openclaw/openclaw/commit/3834d47099dd13c8244ed6de8b9ea9855c553623 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthenticated-ms-teams-webhook-body-parsing
Credits
🔍 AntAISecurityLab