RUSTSEC-2026-0020Published

Wasmtime WASI implementations are vulnerable to guest-controlled resource exhaustion

cve-program · CVE-2026-27204

Published

wasmtime

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "bytecodealliance",
                    "product": "wasmtime",
                    "versions": [
                        {
                            "version": "< 24.0.6",
                            "status": "affected"
                        },
                        {
                            "version": ">= 25.0.0, < 36.0.6",
                            "status": "affected"
                        },
                        {
                            "version": ">= 37.0.0, < 40.0.4",
                            "status": "affected"
                        },
                        {
                            "version": ">= 41.0.0, < 41.0.4",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-8568

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Feb 24, 2026, 9:23:47 PM

dateUpdated: Feb 27, 2026, 8:54:48 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-27204

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-400 · CWE-770 · CWE-774 · CWE-789

Original publisher date fields

published: 2026-02-24T22:16:32.480

lastModified: 2026-06-17T10:26:50.570

1 source CPE criteria · context only

cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-852m-cvvp-9p4w

Published

wasmtime

crates.io

SEMVER · introduced 0 → fixed 24.0.6

wasmtime

crates.io

SEMVER · introduced 25.0.0 → fixed 36.0.6

wasmtime

crates.io

SEMVER · introduced 37.0.0 → fixed 40.0.4

Original source record · Cite this exact observation · Complete original publisher JSON

osv · RUSTSEC-2026-0020

Published

wasmtime

crates.io

SEMVER · introduced 0.0.0-0 → fixed 24.0.6 → introduced 25.0.0 → fixed 36.0.6 → introduced 37.0.0 → fixed 40.0.4 → introduced 41.0.0 → fixed 41.0.4

Original source record · Cite this exact observation · Complete original publisher JSON