CVE-2026-43572

MEDIUM

5.3

Description

OpenClaw versions 2026.4.10 before 2026.4.14 contain a missing authorization vulnerability in the Microsoft Teams SSO invoke handler that fails to apply sender allowlist checks. Attackers can bypass sender authorization by sending SSO invoke requests that are processed without proper validation, allowing unauthorized access to Teams SSO signin functionality.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/5/2026

Last Modified5/5/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-862

References

https://github.com/openclaw/openclaw/commit/80b1fa17bfc3f6a668492f0326ea52f48bb89776(disclosure@vulncheck.com)

https://github.com/openclaw/openclaw/security/advisories/GHSA-gc9r-867r-j85f(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/openclaw-missing-sender-authorization-in-microsoft-teams-sso-invoke-handler(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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