CVE-2026-27190: Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process

CVE-2026-27190 · Severity: low · CVSS 3.1 · Published 2026-02-19

Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process

Technologies: deno (crates.io). Vendors: crates.io.

Quick answers

Is CVE-2026-27190 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-27190 being exploited in the wild.
How severe is CVE-2026-27190?
Low severity, with a CVSS score of 3.1, published 19 February 2026.
Which products and versions are affected?
deno (crates.io) SEMVER:introduced=0,fixed=2.6.8.
Is there a fix for CVE-2026-27190?
Yes. deno (crates.io): upgrade to 2.6.8 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-27190?
Check whether you run deno (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • deno (crates.io): upgrade to 2.6.8 or later
    cargo update -p deno

Affected products

  • deno (crates.io) SEMVER:introduced=0,fixed=2.6.8

Identifiers

  • CVE-2026-27190
  • GHSA-hmh4-3xvx-q5hr

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