8.1
/ 10
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Basic Information
ID
CVE-2026-49402
Source
GitHub_M
Published
Jun 23, 2026 at 17:20
Modified
Jun 23, 2026 at 17:54
Affected Product
Vendor
denoland
Product
deno
Version
< 2.7.10
Affected Versions
denoland deno < 2.7.10