CVE-2026-108699

hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosignverifyargs accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sign a malicious image...

CVE-2026-108698

hyper-mcp through 0.8.3 contains a signature verification bypass vulnerability in loadwasm 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...

CVE-2026-108699 hyper-mcp through 0.8.3 Improper Signature Verification of OCI WebAssembly Plugins

hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosignverifyargs accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sign a malicious image...

EUVD-2026-96999

hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosignverifyargs accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sign a malicious image...

CVE-2026-108699

The hyper-mcp framework (versions through 0.8.3 ) is vulnerable to an improper signature verification flaw involving OCI WebAssembly plugins. The root cause is that the cosign_verify_args() function accepts any signer identity and OIDC issuer by default. This allows an attacker who controls a plu...

CVE-2026-108699 hyper-mcp through 0.8.3 Improper Signature Verification of OCI WebAssembly Plugins

hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosignverifyargs accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sign a malicious image...

CVE-2026-108699 hyper-mcp through 0.8.3 Improper Signature Verification of OCI WebAssembly Plugins

hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosignverifyargs accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sign a malicious image...

CVE-2026-108699

hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosignverifyargs accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sign a malicious image...

CVE-2026-108699: Improper Verification of Cryptographic Signature

hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosignverifyargs accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sign a malicious image...

PT-2026-110166

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...

CVE-2026-108698: Time-of-check Time-of-use (TOCTOU) Race Condition

hyper-mcp through 0.8.3 contains a signature verification bypass vulnerability in loadwasm 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...

PT-2026-110167

🚨 CVE-2026-108699 hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosign verify args accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sig...

Hyper-MCP encryption issue vulnerabilities

Hyper-MCP versions 0.8.3 and earlier have an encryption-related vulnerability. This vulnerability stems from the fact that cosignverifyargs accepts any signer identity and OIDC issuer by default. Improper signature verification may allow attackers to load malicious WebAssembly plugins, which can...

Hyper-MCP race condition issue

Hyper-MCP versions 0.8.3 and earlier have a vulnerability due to a race condition. This issue arises because the loadwasm function in src/wasm/oci.rs verifies the Cosign signature of individual tags, rather than the signature of the loaded manifests. An attacker can control the registry responses...