GHSA-w4fh-qvv9-3v23

Model Context Protocol Python SDK: Server bearer-token authentication accepts tokens issued for a different resource server

Medium highest severity reported · also known as CVE-2026-116684

2
catalog tools match this advisory
0
ship the vulnerable code in their release binary (Go tools analyzed with govulncheck)
No
in the CISA KEV catalog
0.4%
EPSS for CVE-2026-116684, percentile 30

Catalog tools matching GHSA-w4fh-qvv9-3v23

ToolVersion scannedPackageFixed inReleased binaryDeclared in or found inDispute
prowler
Cloud Security
5.47.0mcp@1.28.1
pypi
1.30.0not analyzedmcp_server/uv.lockDispute
semgrep
Static Application Security Testing (SAST) › Multi-language
v1.183.0mcp@1.29.0
pypi
1.30.0not analyzedcli/uv.lockDispute

Vulnerabilities are known advisories that Grype matches against the dependencies declared in each project's release source (manifests and lockfiles, including development and build dependencies). A match does not mean the tool is exploitable: the vulnerable code may be unused, test-only, or not shipped in the released binary. KEV: listed in the CISA Known Exploited Vulnerabilities catalog. EPSS: FIRST's estimated probability of exploitation in the next 30 days. Both describe the vulnerability in general, not its exploitability through this tool; a match in a workflow file refers to a GitHub Action, not to shipped code. Released binary is only analyzed for Go tools with a Linux release binary; other tools show not analyzed.

Advisory sources

GitHub advisory GHSA-w4fh-qvv9-3v23 · NVD CVE-2026-116684 · OSV GHSA-w4fh-qvv9-3v23

Grype data sources: https://github.com/advisories/GHSA-w4fh-qvv9-3v23