{"id":"CVE-2026-119141","aliases":["RUSTSEC-2026-0356","GHSA-7v24-42x9-pxf7"],"title":"Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Host Panic via realloc","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-7v24-42x9-pxf7\nFor more information see the GitHub-hosted security advisory.","severity":"medium","score":6.9,"published":"2026-10-14T12:00:00.000Z","modified":"2026-10-30T02:56:01.266Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"crates.io","name":"wasmtime","sources":[{"name":"OSV · RUSTSEC-2026-0356","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0356"}],"ranges":[{"events":[{"introduced":"46.0.0"},{"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-7v24-42x9-pxf7","https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-realloc","https://crates.io/crates/wasmtime","https://rustsec.org/advisories/RUSTSEC-2026-0356.html","https://github.com/bytecodealliance/wasmtime/pull/14739"],"sources":[{"name":"CVE","id":"CVE-2026-119141","modified":"2026-10-29T17:14:25.649Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-119141"},{"name":"OSV","id":"RUSTSEC-2026-0356","modified":"2026-10-30T02:56:01.266425277Z","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0356"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.9},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3}],"cve":{"records":[{"id":"CVE-2026-119141","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-29T14:28:41.594Z","published":"2026-10-29T15:58:20.531Z","modified":"2026-10-29T17:14:25.649Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-29T15:58:20.531Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-29T17:14:25.649Z"}],"references":[{"url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-7v24-42x9-pxf7","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-realloc","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-1265","description":"Unintended Reentrant Invocation of Non-reentrant Code Via Nested Calls","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*","versionStartIncluding":"46.0.0","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":"2026-10-29T17:10:34.489927Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"products":[{"vendor":"bytecodealliance","name":"wasmtime","platforms":[],"versions":[{"version":"46.0.0","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-2026-119141"}],"remediation":[],"observedAt":"2026-10-30T03:26:03.694Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:10:32.801Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T17:20:35.927Z","attemptedAt":"2026-10-29T17:20:35.927Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-29T17:20:35.255Z","attemptedAt":"2026-10-29T17:20:35.255Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T17:20:35.279Z","attemptedAt":"2026-10-29T17:20:35.279Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-29T17:20:35.677Z","attemptedAt":"2026-10-29T17:20:35.677Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-113208","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-113208","modified":"Oct 29, 2026, 3:58:20 PM","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","checkedAt":"2026-10-29T17:20:35.279Z"},{"source":"NVD","id":"CVE-2026-119141","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119141","modified":"2026-10-29T17:18:07.937","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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":"2026-10-29T17:20:35.927Z"},{"source":"NVD","id":"CVE-2026-119141","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119141","modified":"2026-10-29T17:18:07.937","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","checkedAt":"2026-10-29T17:20:35.927Z"}],"aiSummary":{"text":"Wasmtime versions 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 have a host panic vulnerability via realloc. The weakness is unintended reentrant invocation of non-reentrant code. Affected versions include 46.0.0 to 48.0.6 and 49.0.0 to 49.0.3.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:17:01.155Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-119141"},{"name":"OSV","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0356"}]}}