CVE Watch16 oct 2026

CVE-2026-108698

hyper-mcp through 0.8.3 contains a signature verification bypass vulnerability in load_wasm in src/wasm/oci.rs that verifies the Cosign sign

CVSS

6.5

Medio

EPSS

0.2%

p15

KEV

—

Exploit Today

0-100

Publicado: 11 oct 2026 · Última mod.: 16 oct 2026 · CWE-367

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-10-122026-10-23

Descripción técnica

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.

Referencias oficiales

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