CVE-2026-0234 PUBLISHED

Cortex XSOAR: Improper Verification of Cryptographic Signature in Microsoft Teams integration

Assigner: palo_alto
Reserved: 03.11.2025 Published: 13.04.2026 Updated: 13.04.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Red
CVSS Score: 7.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	High	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Palo Alto Networks
Product	Cortex XSOAR Microsoft Teams Marketplace
Versions	Default: unaffected affected from 1.5.0 to 1.5.52 (excl.)

Vendor	Palo Alto Networks
Product	Cortex XSIAM Microsoft Teams Marketplace
Versions	Default: unaffected affected from 1.5.0 to 1.5.52 (excl.)

Exploits

Palo Alto Networks is not aware of any malicious exploitation of this issue.

Credits

quinn finder

References

https://security.paloaltonetworks.com/CVE-2026-0234

Problem Types

CWE-347 Improper Verification of Cryptographic Signature CWE

Impacts

CAPEC-475 Signature Spoofing by Improper Validation