CVE-2026-59563
Published:September 28, 2026
Updated:October 10, 2026
Zscaler MCP Server versions 0.7.0 and 0.7.1 has an issue where HMAC confirmation tokens were not bound to the target resource identifier, allowing an MCP client or agent to replay a token generated for one resource to affect another resource of the same type. This issue is fixed in version 0.7.2.
Affected Packages
https://github.com/zscaler/zscaler-mcp-server.git (GITHUB):
Affected version(s) >=v0.7.0 <v0.7.2Fix Suggestion:
Update to version v0.7.2zscaler-mcp (PYTHON):
Affected version(s) >=0.7.0 <0.7.2Fix Suggestion:
Update to version 0.7.2Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Authentication Bypass by Primary Weakness
EPSS
Base Score:
0.13