CVE-2026-59563
Medium
Description
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.
SeverityMedium
CVSS4.6
Exploit probability—
ProductZscaler-mcp-server
PublishedSep 28, 2026
First seenSep 28, 2026
Weakness typeCWE-305CWE-305
How to fix
Update
- Zscaler zscaler-mcp-server0.7.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Zscaler zscaler-mcp-server | 0.7.0 ≤ v < 0.7.2 | 0.7.2 |
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