Palo Alto Cortex XSOAR Microsoft Teams Marketplace up to 1.5.51 signature verification

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Palo Alto Cortex XSOAR Microsoft Teams Marketplace and Cortex XSIAM Microsoft Teams Marketplace up to 1.5.51. It has been classified as problematic. Affected is an unknown function. This manipulation causes signature verification. This vulnerability appears as CVE-2026-0234. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Palo Alto Cortex XSOAR Microsoft Teams Marketplace and Cortex XSIAM Microsoft Teams Marketplace up to 1.5.51. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented by quinn. It is possible to read the advisory at security.paloaltonetworks.com. This vulnerability is known as CVE-2026-0234 since 11/03/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.5.52 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-21899) and CERT Bund (WID-SEC-2026-1017). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Palo Alto Networks Cortex XSOAR

Productinfo

Type

• Unified Communication Software

Vendor

• Palo Alto

Name

• Cortex XSIAM Microsoft Teams Marketplace
• Cortex XSOAR Microsoft Teams Marketplace

Version

• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3
• 1.5.4
• 1.5.5
• 1.5.6
• 1.5.7
• 1.5.8
• 1.5.9
• 1.5.10
• 1.5.11
• 1.5.12
• 1.5.13
• 1.5.14
• 1.5.15
• 1.5.16
• 1.5.17
• 1.5.18
• 1.5.19
• 1.5.20
• 1.5.21
• 1.5.22
• 1.5.23
• 1.5.24
• 1.5.25
• 1.5.26
• 1.5.27
• 1.5.28
• 1.5.29
• 1.5.30
• 1.5.31
• 1.5.32
• 1.5.33
• 1.5.34
• 1.5.35
• 1.5.36
• 1.5.37
• 1.5.38
• 1.5.39
• 1.5.40
• 1.5.41
• 1.5.42
• 1.5.43
• 1.5.44
• 1.5.45
• 1.5.46
• 1.5.47
• 1.5.48
• 1.5.49
• 1.5.50
• 1.5.51

License

• commercial

Website

• Vendor: https://www.paloaltonetworks.com/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Cortex XSOAR Microsoft Teams Marketplace/Cortex XSIAM Microsoft Teams Marketplace 1.5.52

Timelineinfo

11/03/2025 CVE reserved
04/13/2026 +160 days Advisory disclosed
04/13/2026 +0 days VulDB entry created
07/08/2026 +86 days VulDB entry last update

Sourcesinfo

Vendor: paloaltonetworks.com

Advisory: security.paloaltonetworks.com
Researcher: quinn
Status: Confirmed

CVE: CVE-2026-0234 (🔒)
GCVE (CVE): GCVE-0-2026-0234
GCVE (VulDB): GCVE-100-357103
EUVD: 🔒
CERT Bund: WID-SEC-2026-1017 - Palo Alto Networks Cortex XSOAR (Microsoft Teams Marketplace): Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Entryinfo

Created: 04/13/2026 10:06
Updated: 07/08/2026 05:27
Changes: 04/13/2026 10:06 (73), 04/13/2026 13:09 (1), 04/13/2026 22:00 (7), 07/08/2026 05:27 (12)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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