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Vulnerabilities

Vulnerability · CVE-2026-27190

Deno is a JavaScript, TypeScript, and WebAssembly runtime.

Published Feb 20, 2026 · catalog updated Jun 17, 2026 · Deno is a JavaScript,

Check if you run it

No confirmed exploitation is on record for CVE-2026-27190. EPSS is 3.24%. Act only if a listed version of Deno is a JavaScript, is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Deno is a JavaScript,).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.24%
Remediation
Advisory link
Affected products
cpe deno/deno

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.6.8, a command injection vulnerability exists in Deno's node:child_process implementation. This vulnerability is fixed in 2.6.8.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe deno/denoversion unspecified

How to fix CVE-2026-27190

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-27190. EPSS is 3.24%. Act only if a listed version of Deno is a JavaScript, is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 3.24%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 20, 2026 · NIST NVD

    Detected

    Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.6.8, a command injection vulnerability exists in Deno's node:child_process implementation. This vulnerability is fixed in 2.6.8.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.6.8, a command injection vulnerability exists in Deno's node:child_process implementation. This vulnerability is fixed in 2.6.8.

Sources

  • CVE.orgVulnerability recordCVE-2026-27190

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27190

    30-day exploitation probability 3.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-27190

    Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.6.8, a command injection vulnerability exists in Deno's node:child_process implementation. This vulnerability is fixed in 2.6.8.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.