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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-41405

29
FAUCET Score

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.

First published: Apr 28, 2026Last modified: Apr 29, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, < 2026.3.31CPE match
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
< 2026.3.31CPE matchmatch criteria
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 17th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: openclawFixed in: 2026.3.31

Vendor Advisories (1)

npmGHSA-p464-m8x6-vhv8high

OpenClaw: MS Teams webhook parses body before JWT validation, enabling unauthenticated resource exhaustion

Apr 3, 2026

References

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