Incorrect Regular Expression Affecting mcp-mongodb package, versions <3.1.0-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.31% (22nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-MCPMONGODB-21178835
  • published18 Oct 2026
  • disclosed28 May 2026

Introduced: 28 May 2026

CVE-2026-47674  (opens in a new tab)
CWE-185  (opens in a new tab)
CWE-1289  (opens in a new tab)

How to fix?

Upgrade Minimos:latest mcp-mongodb to version 3.1.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mcp-mongodb package and not the mcp-mongodb package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6 representations of an address already listed in a static rule — such as compressed forms, explicit-zero forms, or hex-notation IPv4-mapped addresses — do not match the normalized rule entry, causing the rule to be silently skipped. This vulnerability is fixed in 4.12.21.