@offactory/compress-fonts before 1.1.1 OS Command Injection via Font File Names

Summary

@offactory/compress-fonts before 1.1.1 contains an OS command injection vulnerability that allows attackers to execute shell commands by supplying font files with crafted names. Font paths are interpolated unquoted into a FontForge command run through child_process.execSync, so shell metacharacters in file names execute commands with the Node.js process privileges.

Evidence

The maintainer accepted the patch submitted with the report and merged the fix.

Remediation

Upgrade @offactory/compress-fonts to 1.1.1 or later.

References

• VulnCheck advisoryhttps://www.vulncheck.com/advisories/offactory-compress-fonts-before-1.1.1-os-command-injection-via-font-file-names
• Fix pull requesthttps://github.com/adamarcanov/compress-fonts/pull/1
• Vulnerable codehttps://github.com/adamarcanov/compress-fonts/blob/7b07d20b3125a7bba8f933eeca21f5a09c8fb62a/index.js#L48
• CVE recordhttps://www.cve.org/CVERecord?id=CVE-2026-110648