CVE-2026-49402
HIGH EPSS 20.0%
Published Jun 23, 20261w ago · Modified Jun 23, 20261w ago
8.1 CVSS 3.1
Published Jun 23, 2026 1w ago
Last Modified Jun 23, 2026 1w ago
Description
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.7.10, Deno's node:child_process implementation provided an escapeShellArg() helper used when callers passed shell: true to spawn / spawnSync / exec and friends. On Windows, the helper failed to quote arguments that contained cmd.exe metacharacters and did not neutralize % (which cmd.exe expands even inside double-quoted strings). An attacker who controlled any portion of an argument passed to such a call could inject arbitrary additional commands into the spawned cmd.exe invocation. This vulnerability is fixed in 2.7.10.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
20.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-78 OS Command Injection Injection
References 1
- github.com https://github.com/denoland/deno/security/advisories/GHSA-7xh3-mhg9-jcw8
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.