CVE-2026-103473 Deno - Command Injection

Deno 2.7.0 through 2.9.7 on Windows contains a command injection caused by incorrect shell argument escaping in node:child_process, letting attackers execute arbitrary OS commands with Deno process privileges, exploit requires passing untrusted arguments with shell option.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
1.47% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
30 September 2026
Updated
15 October 2026
Weakness
CWE-78

Vendor fix

Update to a version later than 2.9.7 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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