PT-2026-110166 · Hyper Mcp Rs · Hyper-Mcp

·

CVE-2026-108698

·

Published

2026-10-11

·

Updated

2026-10-12

CVSS v3.1

6.5

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
hyper-mcp through 0.8.3 contains a signature verification bypass vulnerability in load wasm in src/wasm/oci.rs that verifies the Cosign signature of a separately resolved tag rather than the loaded manifest. Attackers controlling registry responses for the tag can serve an unsigned malicious manifest to the loader and a signed one to Cosign, executing unsigned WebAssembly plugins with configured host capabilities.

Fix

Time Of Check To Time Of Use

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-108698

Affected Products

Hyper-Mcp