{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108699 exists.","fix":"No fix has been published for CVE-2026-108699 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-108699 is a high-severity vulnerability in hyper-mcp-rs hyper-mcp, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-108699 and fix it if it is affected.\n\nWhat it is: CVE-2026-108699 is a high-severity vulnerability in hyper-mcp-rs hyper-mcp, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108699 exists.\n\nAffected product: hyper-mcp-rs hyper-mcp. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-108699/ (Markdown: https://insights.sbomify.com/CVE-2026-108699/index.md)","id":"CVE-2026-108699","markdown":"https://insights.sbomify.com/CVE-2026-108699/index.md","name":"CVE-2026-108699","record":{"aliases":["GHSA-4j25-h357-wg62"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust MCP library","requires_auth":"none","summary":"Attackers can execute malicious WebAssembly plugins by bypassing signature verification in hyper-mcp, leading to arbitrary code execution with host capabilities.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.3,"severity":"high","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"hyper-mcp through 0.8.3 Improper Signature Verification of OCI WebAssembly Plugins","id":"CVE-2026-108699","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"1Panel-dev CordysCRM before 1.9.2 Missing Authorization via /field/source/business-title","id":"CVE-2026-108700"},"packages":[],"prev":{"headline":"hyper-mcp through 0.8.3 OCI Plugin Signature Verification TOCTOU Race Condition","id":"CVE-2026-108698"},"products":["hyper-mcp"],"published":"2026-10-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-13","vendors":["hyper-mcp-rs"]},"summary":"Attackers can execute malicious WebAssembly plugins by bypassing signature verification in hyper-mcp, leading to arbitrary code execution with host capabilities.","url":"https://insights.sbomify.com/CVE-2026-108699/"}