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CRITICAL · 9.1

CVE-2026-0234

An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables an unauthenticated user to access...

Vulnerability Description

An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables an unauthenticated user to access and modify protected resources.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
PaloaltonetworksCortex Xsiam>= 1.5.0, < 1.5.52
PaloaltonetworksCortex Xsoar>= 1.5.0, < 1.5.52

Related Weaknesses (CWE)

CWE-347

References

FAQ

What is CVE-2026-0234?

CVE-2026-0234 is a vulnerability with a CVSS score of 9.1 (CRITICAL). An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables an unauthenticated user to access...

How severe is CVE-2026-0234?

CVE-2026-0234 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-0234?

Check the references section above for vendor advisories and patch information. Affected products include: Paloaltonetworks Cortex Xsiam, Paloaltonetworks Cortex Xsoar.