CVE-2026-108699
- Source
- https://cve.org/CVERecord?id=CVE-2026-108699
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108699.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-108699
- Published
- 2026-10-11T13:25:59Z
- Modified
- 2026-10-13T02:45:26Z
- Severity
-
- 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- hyper-mcp through 0.8.3 Improper Signature Verification of OCI WebAssembly Plugins
- Details
-
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 sign a malicious image with a free Sigstore keyless certificate to execute plugins with configured host, filesystem, and environment capabilities.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-347" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108699.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108699.json
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/hyper-mcp-oci-signature-manifest-toctou
- https://nvd.nist.gov/vuln/detail/CVE-2026-108699
- https://www.vulncheck.com/advisories/hyper-mcp-through-0.8.3-improper-signature-verification-of-oci-webassembly-plugins
- https://github.com/hyper-mcp-rs/hyper-mcp
- https://github.com/hyper-mcp-rs/hyper-mcp/blob/v0.8.3/src/config.rs#L138-L170
- https://github.com/hyper-mcp-rs/hyper-mcp/blob/v0.8.3/src/wasm/oci.rs#L157-L190
Affected packages
Git / github.com/hyper-mcp-rs/hyper-mcp
Affected ranges
- Type
- GIT
- Repo
- https://github.com/hyper-mcp-rs/hyper-mcp
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0" }, { "last_affected": "0.8.3" }, { "fixed": "0.8.3" } ], "source": [ "AFFECTED_FIELD", "DESCRIPTION" ] }