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.
- Score
- CVSS 3.1 8.8 High
- Status
- Deferred - disclosure@vulncheck.com
- Published
- 2026-07-20
- Last modified
- 2026-10-24
- Weaknesses
- CWE-184
Affected products
References
- https://github.com/geo-chen/oss/blob/main/Roo-Code.md
- https://www.vulncheck.com/advisories/roo-code-command-injection-via-parameter-expansion-parsing
