CVE-2026-63108

Roo Code 3.54.0 Command Injection via Parameter Expansion Parsing

Published Jul 20, 2026 CVSS 4.0 · 7.7 High EPSS 1.8% KEV · Not listed
Description
Roo Code through 3.54.0 contains a command injection vulnerability in the auto-approve execute feature that allows attackers to bypass allowlist/denylist enforcement by nesting command substitutions inside parameter expansion defaults. The command parser in parse-command.ts replaces parameter expansions with opaque placeholders before extracting command substitutions, causing the containsDangerousSubstitution guard to miss nested payloads, which are then auto-approved based on the outer allowlisted command prefix and executed by the shell via execa, enabling arbitrary command execution.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Roocode roo Code
CPEs cpe:2.3:a:roocode:roo_code:*:*:*:*:*:*:*:*
Vendors & Products Roocode roo Code
Type Values Removed Values Added
First Time appeared Roocode
Roocode roo-code
Vendors & Products Roocode
Roocode roo-code
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Roo Code through 3.54.0 contains a command injection vulnerability in the auto-approve execute feature that allows attackers to bypass allowlist/denylist enforcement by nesting command substitutions inside parameter expansion defaults. The command parser in parse-command.ts replaces parameter expansions with opaque placeholders before extracting command substitutions, causing the containsDangerousSubstitution guard to miss nested payloads, which are then auto-approved based on the outer allowlisted command prefix and executed by the shell via execa, enabling arbitrary command execution.
Title Roo Code 3.54.0 Command Injection via Parameter Expansion Parsing
Weaknesses CWE-184
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 28, 2026, 1:05 AM
Reserved
Jul 15, 2026, 3:45 PM
Status
Deferred
Published
Jul 20, 2026, 7:17 PM
Modified
Oct 24, 2026, 8:10 PM