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CVE-2026-27190

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

Published: Feb 20, 2026Updated: Mar 2, 2026 Sources: CVE List NVD GHSACWE-78
NVD MITRE
8.1CVSSHIGH
EPSS Score
2.0%
Top 22.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

denodenoland
On-prem
OSS Libraries / generic-library
denodeno
Library
OSS Libraries / generic-library
denocrates.ioOSS Libraries
denolandoss-projectUSOSS Librariesaka deno
denooss-projectOSS Librariesaka deno runtime, deno standard modules
crates.iopackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://github.com/denoland/deno/security/advisories/GHSA-hmh4-3xvx-q5hr
github.com
https://github.com/denoland/deno/commit/9132ad958c83a0d0b199de12b69b877f63edab4c
github.com
https://github.com/denoland/deno/releases/tag/v2.6.8
github.com
and 2 more references View all →

Timeline

Published
Feb 20, 2026
Last Updated
Mar 2, 2026

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