{"id":"CVE-2026-119133","aliases":["RUSTSEC-2026-0364","GHSA-p79w-pv2r-29qp"],"title":"Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Misaligned VMContext via Exception Tags","titleSource":"VulnCheck","descriptionSource":"OSV","description":"This is an entry in the RustSec database for the Wasmtime security advisory\nlocated at\nhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p79w-pv2r-29qp\nFor more information see the GitHub-hosted security advisory.","severity":"low","score":2.6,"published":"2026-10-14T12:00:00.000Z","modified":"2026-10-30T02:55:49.991Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"crates.io","name":"wasmtime","sources":[{"name":"OSV · RUSTSEC-2026-0364","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0364"}],"ranges":[{"events":[{"introduced":"47.0.0"},{"fixed":"48.0.6"},{"introduced":"49.0.0"},{"fixed":"49.0.3"}],"type":"SEMVER"}],"versions":[],"fixed":["48.0.6","49.0.3"]}],"sourceAffected":[],"references":["https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p79w-pv2r-29qp","https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.6-and-49.0.0-before-49.0.3-misaligned-vmcontext-via-exception-tags","https://crates.io/crates/wasmtime","https://rustsec.org/advisories/RUSTSEC-2026-0364.html","https://github.com/bytecodealliance/wasmtime/pull/14731"],"sources":[{"name":"CVE","id":"CVE-2026-119133","modified":"2026-10-29T17:14:39.514Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-119133"},{"name":"OSV","id":"RUSTSEC-2026-0364","modified":"2026-10-30T02:55:49.991191367Z","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0364"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":2.1},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N","score":2.6},{"source":"OSV","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":2.1}],"cve":{"records":[{"id":"CVE-2026-119133","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-29T14:26:15.522Z","published":"2026-10-29T15:58:14.355Z","modified":"2026-10-29T17:14:39.514Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-29T15:58:14.355Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-29T17:14:39.514Z"}],"references":[{"url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p79w-pv2r-29qp","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.6-and-49.0.0-before-49.0.3-misaligned-vmcontext-via-exception-tags","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-758","description":"Reliance on Undefined, Unspecified, or Implementation-Defined Behavior","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*","versionStartIncluding":"47.0.0","versionEndExcluding":"48.0.6"},{"vulnerable":true,"criteria":"cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*","versionStartIncluding":"49.0.0","versionEndExcluding":"49.0.3"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-29T16:16:13.082223Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"products":[{"vendor":"bytecodealliance","name":"wasmtime","platforms":[],"versions":[{"version":"47.0.0","status":"affected","lessThan":"48.0.6","versionType":"semver"},{"version":"48.0.6","status":"unaffected","versionType":"semver"},{"version":"49.0.0","status":"affected","lessThan":"49.0.3","versionType":"semver"},{"version":"49.0.3","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:cargo/wasmtime","packageIdentity":{"ecosystem":"crates.io","name":"wasmtime"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-119133"}],"remediation":[],"observedAt":"2026-10-30T03:26:12.195Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T12:15:32.680Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T03:35:32.799Z","attemptedAt":"2026-10-30T03:35:32.799Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-30T03:35:32.948Z","attemptedAt":"2026-10-30T03:35:32.948Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-30T03:35:32.884Z","attemptedAt":"2026-10-30T03:35:32.884Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-30T03:35:32.652Z","attemptedAt":"2026-10-30T03:35:32.652Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-119133","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119133","modified":"2026-10-29T18:17:30.473","score":2.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-30T03:35:32.799Z"},{"source":"NVD","id":"CVE-2026-119133","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119133","modified":"2026-10-29T18:17:30.473","score":2.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N","checkedAt":"2026-10-30T03:35:32.799Z"},{"source":"ENISA EUVD","id":"EUVD-2026-113200","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-113200","modified":"Oct 29, 2026, 5:14:39 PM","score":2.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","checkedAt":"2026-10-30T03:35:32.884Z"},{"source":"GitHub Advisory Database","id":"GHSA-9283-62cg-q26h","url":"https://github.com/advisories/GHSA-9283-62cg-q26h","modified":"2026-10-29T18:31:05Z","score":2.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N","checkedAt":"2026-10-30T03:35:32.948Z"}],"aiSummary":{"text":"Wasmtime versions 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 have a misaligned VMContext via exception tags weakness, which is a reliance on undefined behavior. The impact is unspecified. Affected versions include 47.0.0 to 48.0.6 and 49.0.0 to 49.0.3.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:16:37.670Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-119133"},{"name":"OSV","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0364"}]}}