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Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 Unbounded Host Memory Allocation via SinkOutputStream write-zeroes

cve-program · CVE-2026-115381

Published

wasmtime

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "bytecodealliance",
                    "product": "wasmtime",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:cargo/wasmtime-wasi",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "36.0.17"
                        },
                        {
                            "version": "36.0.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "37.0.0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "48.0.4"
                        },
                        {
                            "version": "48.0.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "49.0.0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "49.0.2"
                        },
                        {
                            "version": "49.0.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }

nvd · CVE-2026-115381

Published

No affected-package array is stated in this source revision. Check its state and earlier observations; this does not establish that every package is unaffected.

osv · RUSTSEC-2026-0322

Published

wasmtime-wasi

crates.io

SEMVER · introduced 0.0.0-0 → fixed 36.0.17 → introduced 37.0.0 → fixed 48.0.4 → introduced 49.0.0 → fixed 49.0.2

ChangeIntel

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Sources read 26 Oct 06:23 UTC · 272 of 272 readable · 270 fully read · documentation 469/469 current