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CVE-2026-103473

Deno 2.7.0 through 2.9.7 Command Injection via node:child_process

HIGH
8.1
CVSS Score
Published: September 30, 2026 at 05:22 PM UTC
Updated: October 2, 2026 at 05:17 PM UTC
2 products affected across 2 vendorsDenoDeno

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Severity
HIGH8.1
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Deno versions 2.7.0 through 2.9.7 on Windows contain a command injection vulnerability in node:child_process where shell arguments are escaped for the wrong shell type. Attackers can inject OS commands by passing untrusted arguments with the shell option, allowing arbitrary command execution with Deno process privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Deno· Denocargo
95%
2.7.0 ≤ v ≤ 2.9.7
Deno· Denoland
60%
2.7.0 ≤ v ≤ 2.9.72.7.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Issue TrackingPatch
Source: cverecord
https://github.com/denoland/deno/pull/36772
Product
Source: cverecord
https://github.com/denoland/deno
Technical Description
Source: cverecord
https://github.com/denoland/deno/blob/0c071246a412575e07423263404a5d13e7ed6aa2/ext/node/polyfills/internal/child_process.ts#L1499
Technical Description
Source: cverecord
https://github.com/denoland/deno/blob/0c071246a412575e07423263404a5d13e7ed6aa2/ext/node/polyfills/internal/child_process.ts#L1339
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/deno-2.7.0-through-2.9.7-command-injection-via-node-child-process

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-78

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