What’s Vulnerable › Vulnerabilities

CVE-2026-55249: @rtk-ai/rtk-rewrite: OpenClaw Rewrite Plugin Command Injection via execSync Template String

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-06-23 · updated 2026-10-25
• Weakness: CWE-78

Description

@rtk-ai/rtk-rewrite transparently rewrites shell commands executed via OpenClaw's exec tool to their RTK equivalents. In 1.0.0, the @rtk-ai/rtk-rewrite OpenClaw plugin passes attacker-controlled input directly into a shell-backed execSync() template string without shell-safe escaping. JSON.stringify() wraps the value in double quotes and escapes inner double-quotes and backslashes, but leaves $() and backtick shell metacharacters untouched. Because execSync delegates execution to /bin/sh -c, the shell expands $(...) substitutions even inside double-quoted strings, causing the injected subcommand to execute before rtk is invoked. An attacker who can influence the exec tool's command parameter (e.g., via an LLM agent prompt or gateway/tool-call input) achieves arbitrary OS command execution with the privileges of the plugin/gateway process.

Affected products

• Rtkai Rtk-Rewrite: 1.0.0

References

• https://github.com/rtk-ai/rtk/security/advisories/GHSA-fqgj-m2gp-mr3q
• https://github.com/rtk-ai/rtk/security/advisories/GHSA-fqgj-m2gp-mr3q

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