EUVD-2026-8792Published

MCP Go SDK Vulnerable to Improper Handling of Case Sensitivity

cve-program · CVE-2026-27896

Published

go-sdk

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "modelcontextprotocol",
                    "product": "go-sdk",
                    "versions": [
                        {
                            "version": "< 1.3.1",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-8792

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Feb 26, 2026, 12:47:46 AM

dateUpdated: Sep 16, 2026, 12:04:21 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-27896

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-178 · CWE-436

Original publisher date fields

published: 2026-02-26T01:16:25.630

lastModified: 2026-07-15T02:19:12.600

1 source CPE criteria · context only

cpe:2.3:a:lfprojects:mcp_go_sdk:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-wvj2-96wp-fq3f

Published

github.com/modelcontextprotocol/go-sdk

SEMVER · introduced 0 → fixed 1.3.1

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GO-2026-4569

Published

github.com/modelcontextprotocol/go-sdk

SEMVER · introduced 0 → fixed 1.3.1

Original source record · Cite this exact observation · Complete original publisher JSON