CVE-2026-41405

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

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

Vulnerability Description

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.

Vulnerability Details

Published Date

April 28, 2026

Last Modified

April 28, 2026

CWE ID

CWE-408

Source

NVD

Vendor

OpenClaw

Product

OpenClaw

External References

https://github.com/openclaw/openclaw/commit/3834d47099dd13c8244ed6de8b9ea9855c553623
https://github.com/openclaw/openclaw/security/advisories/GHSA-p464-m8x6-vhv8
https://www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthenticated-ms-teams-webhook-body-parsing

CVE-2026-41405

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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