JLSEC-2026-1368

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1368.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1368.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-1368

Upstream

CVE-2026-58494

EUVD-2026-42393

Published

2026-08-21T20:43:33.133Z

Modified

2026-08-21T21:00:06.469960942Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N CVSS Calculator

Summary

[none]

Details

Wasmtime is a runtime for WebAssembly. Prior to 24.0.11, 36.0.12, 45.0.3, and 46.0.1, wasmtime-wasi hard-link creation and renaming check directory permissions but not matching FilePerms on source and destination preopens, allowing a WASI guest with a read-only source file capability to overwrite host files exposed as FilePerms::READ through wasip1, wasip2, or wasip3 filesystem interfaces. This issue is fixed in versions 24.0.11, 36.0.12, 45.0.3, and 46.0.1.

Database specific

{
    "sources": [
        {
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58494",
            "published": "2026-07-08T21:16:54Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-58494",
            "imported": "2026-08-21T20:09:13.758Z",
            "id": "CVE-2026-58494",
            "database_specific": {
                "status": "Deferred"
            },
            "modified": "2026-07-10T19:10:59.333Z"
        },
        {
            "imported": "2026-08-21T20:09:03.341Z",
            "affected": {
                "bytecodealliance:wasmtime": [
                    "25.0.0, < 36.0.12",
                    "37.0.0, < 45.0.3",
                    "46.0.0, < 46.0.1",
                    "< 24.0.11"
                ]
            },
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-42393",
            "published": "2026-07-08T20:22:16Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-42393",
            "id": "EUVD-2026-42393",
            "modified": "2026-07-09T13:28:57Z"
        }
    ],
    "license": "CC-BY-4.0"
}

References

Affected packages

Julia / Wasmtime_jll

Package

Name: Wasmtime_jll
Purl: pkg:julia/Wasmtime_jll?uuid=d20e7296-4f3e-515c-90b9-d2595a77bf72

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

46.0.1+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1368.json"