{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-108698 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-108698 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-108698 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-2026-108698 and fix it if it is affected.\n\nWhat it is: CVE-2026-108698 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: There is no known exploitation of CVE-2026-108698 in the wild and no public exploit code.\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-2026-108698/ (Markdown: https://insights.sbomify.com/CVE-2026-108698/index.md)","id":"CVE-2026-108698","markdown":"https://insights.sbomify.com/CVE-2026-108698/index.md","name":"CVE-2026-108698","record":{"aliases":["GHSA-phv4-c98f-77h3"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust MCP library","requires_auth":"none","summary":"Attackers can bypass signature verification via a race condition to execute malicious WebAssembly plugins with host capabilities in hyper-mcp.","user_interaction":"not_required","vuln_class":"race_condition"},"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-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"hyper-mcp through 0.8.3 OCI Plugin Signature Verification TOCTOU Race Condition","id":"CVE-2026-108698","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"hyper-mcp through 0.8.3 Improper Signature Verification of OCI WebAssembly Plugins","id":"CVE-2026-108699"},"packages":[],"prev":{"headline":"CoreShop through 2026.2.2 Missing Authorization via ResourceController listAction","id":"CVE-2026-108697"},"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-13","vendors":["hyper-mcp-rs"]},"summary":"Attackers can bypass signature verification via a race condition to execute malicious WebAssembly plugins with host capabilities in hyper-mcp.","url":"https://insights.sbomify.com/CVE-2026-108698/"}