Medium severity4.8NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-111385
CVE-2026-111385
Description
Nezha from 2.1.0 before 2.3.15 contains a host header injection vulnerability in mintTransferTool that builds fs.download_url and fs.upload_url transfer URLs from the unvalidated Host header. Attackers who control the Host header seen on a victim's MCP request can redirect file uploads or capture one-time download tokens and replay them to exfiltrate files.
Affected products
1Patches
Vulnerability mechanics
References
4- github.com/nezhahq/nezha/commit/36b742a7e9a81ed782363dd19efd77b7030fbd0fnvd
- github.com/nezhahq/nezha/commit/c726930833937a0aebb2a924064f236faea889f6nvd
- github.com/nezhahq/nezha/security/advisories/GHSA-rj3w-jrj7-x7c3nvd
- www.vulncheck.com/advisories/nezha-2.1.0-before-2.3.15-host-header-injection-via-mcp-transfer-toolsnvd
News mentions
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