{"id":"CVE-2026-115380","aliases":[],"cve":{"records":[{"id":"CVE-2026-115380","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-22T11:25:27.610Z","published":"2026-10-22T19:13:48.469Z","modified":"2026-10-26T19:38:30.038Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-22T19:13:48.469Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-26T19:38:30.038Z"}],"references":[{"url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-j366-h8gg-77pm","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/wasmtime-before-36.0.17-37.0.0-before-48.0.4-and-49.0.0-before-49.0.2-fuel-limit-bypass-dos-via-wasi-preview-0-poll-oneoff","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-770","description":"Allocation of Resources Without Limits or Throttling","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*","versionEndExcluding":"36.0.17"},{"vulnerable":true,"criteria":"cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*","versionStartIncluding":"37.0.0","versionEndExcluding":"48.0.4"},{"vulnerable":true,"criteria":"cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*","versionStartIncluding":"49.0.0","versionEndExcluding":"49.0.2"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-26T19:27:18.578210Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 Fuel Limit Bypass DoS via WASI Preview 0 poll_oneoff","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASI preview 0 poll_oneoff adapter, which performs O(n) host work per subscription without consuming or checking fuel. Malicious guest modules can pass many subscriptions to force long-running host computation that ignores configured fuel limits.","score":5.1,"severity":"medium","published":"2026-10-22T19:13:48.469Z","modified":"2026-10-26T19:38:30.038Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"bytecodealliance","name":"wasmtime","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"36.0.17","versionType":"semver"},{"version":"36.0.17","status":"unaffected","versionType":"semver"},{"version":"37.0.0","status":"affected","lessThan":"48.0.4","versionType":"semver"},{"version":"48.0.4","status":"unaffected","versionType":"semver"},{"version":"49.0.0","status":"affected","lessThan":"49.0.2","versionType":"semver"},{"version":"49.0.2","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:cargo/wasmtime-wasi","packageIdentity":{"ecosystem":"crates.io","name":"wasmtime-wasi"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-115380"}],"remediation":[],"references":["https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-j366-h8gg-77pm","https://www.vulncheck.com/advisories/wasmtime-before-36.0.17-37.0.0-before-48.0.4-and-49.0.0-before-49.0.2-fuel-limit-bypass-dos-via-wasi-preview-0-poll-oneoff"],"sources":[{"name":"CVE","id":"CVE-2026-115380","modified":"2026-10-26T19:38:30.038Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-115380"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":5.1},{"source":"VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":4}],"sourceAffected":[],"observedAt":"2026-10-29T14:34:24.379Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:10:32.801Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"Wasmtime versions before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contain a denial of service vulnerability. Malicious guest modules can bypass fuel limits, causing long-running host computation. This is due to the wasmtime-wasi WASI preview 0 poll_oneoff adapter performing O(n) host work per subscription without consuming or checking fuel.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T08:51:11.841Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-115380"}]}}