CVE-2026-53611
CriticalCVSS 9.8Summary
Looking Glass prior to version 1.3.5 contains an OS Command Injection vulnerability resulting from an unanchored regular expression in the input validation layer. This issue has been patched in version 1.3.5.
Risk Assessment
The risk is that an attacker can execute arbitrary system commands, potentially leading to full server compromise and data breach.
Recommendation
Upgrade Looking Glass to version 1.3.5 or later, which includes the fix.
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Original NVD description (English source)
Looking Glass is a modern, stateless network-diagnostic platform — a single self-contained Go binary that fronts a fleet of routers over SSH and exposes ping / traceroute / BGP lookups through a gRPC (ConnectRPC) API, an embedded SvelteKit web UI, and a lg-cli client. Prior to version 1.3.5, there is an OS Command Injection vulnerability resulting from an unanchored regular expression in the input validation layer. This issue has been patched in version 1.3.5.