CVE-2026-33252
Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk
7.1
HIGH
CVSS 3.1
EPSS 0.01%
Description
Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk
How to fix CVE-2026-33252
To remediate CVE-2026-33252, upgrade the affected package to a fixed version below.
- Go/github.com/modelcontextprotocol/go-sdk—upgrade to 1.4.1 or later
- —upgrade to 1.4.1 or later
Is CVE-2026-33252 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.4.1
- from 0, < 1.4.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L |