What’s Vulnerable › Vulnerabilities

CVE-2026-63108: Roo Code 3.54.0 Command Injection via Parameter Expansion Parsing

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-20 · updated 2026-10-24
• Weakness: CWE-184

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.

Affected products

• RooCodeInc Roo-Code: through 3.54.0

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

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