CVE-2026-63108

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/geo-chen/oss/blob/main/Roo-Code.md
https://www.vulncheck.com/advisories/roo-code-command-injection-via-parameter-expansion-parsing

Configurations

No configuration.

History

20 Jul 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-20 19:17

Updated : 2026-07-20 22:17

NVD link : CVE-2026-63108

Mitre link : CVE-2026-63108

CVE.ORG link : CVE-2026-63108

JSON object : View

Products Affected

No product.

CWE

CWE-184

Incomplete List of Disallowed Inputs

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