CVE-2026-41405

7.5 HIGH
Published: April 28, 2026 Modified: April 30, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/openclaw/openclaw/commit/3834d47099dd13c8244ed6de8b9ea9855c553623
Source: disclosure@vulncheck.com
Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-p464-m8x6-vhv8
Source: disclosure@vulncheck.com
Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthenticated-ms-teams-webhook-body-parsing
Source: disclosure@vulncheck.com
Third Party Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.1%
32th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-408

Affected Vendors

openclaw

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