CVE
CVE-2026-41405
OpenClaw: MS Teams webhook parses body before JWT validation, enabling unauthenticated resource exhaustion
Summary
MS Teams webhook parses body before JWT validation, enabling unauthenticated resource exhaustion
Current Maintainer Triage
- Status: open
- Normalized severity: medium
- Assessment: v2026.3.28 still parses Teams JSON after only a Bearer-prefix gate and before real JWT validation, and the auth-before-parse fix is not yet shipped.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version:
2026.3.31 - Vulnerable version range:
<=2026.3.28 - Patched versions:
>= 2026.3.31 - First stable tag containing the fix:
v2026.3.31
Fix Commit(s)
3834d47099dd13c8244ed6de8b9ea9855c553623— 2026-03-30T13:46:40+01:00
OpenClaw thanks @AntAISecurityLab for reporting.
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.7
-
4.0
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
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
C
H
U
-
Related Resources
No items found.
References
https://github.com/openclaw/openclaw/security/advisories/GHSA-p464-m8x6-vhv8, https://nvd.nist.gov/vuln/detail/CVE-2026-41405, https://github.com/openclaw/openclaw/commit/3834d47099dd13c8244ed6de8b9ea9855c553623, https://github.com/openclaw/openclaw, https://github.com/openclaw/openclaw/releases/tag/v2026.3.31, https://www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthenticated-ms-teams-webhook-body-parsing
Basic Information
Ecosystem
