Vulnerability · Published Oct 14, 2026 · Assigned by VulnCheck

CVE-2026-110648@offactory/compress-fonts before 1.1.1 OS Command Injection via Font File Names

High 7.8

In plain English

A high-severity OS command injection in compress-fonts from adamarcanov. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)1.1%top 33.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

@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.

Affected products (as reported)

Vendor	Product	Versions
adamarcanov	compress-fonts	0 – before 1.1.1

Weakness: CWE-78 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://github.com/adamarcanov/compress-fonts/pull/1 patch, issue-tracking
https://github.com/adamarcanov/compress-fonts/commit/12002e5866af2163cd34424baae5a53338951a5d patch
https://github.com/adamarcanov/compress-fonts/blob/7b07d20b3125a7bba8f933eeca21f5a09c8fb62a/index.js#L48 technical-description
VulnCheck Advisory: @offactory/compress-fonts before 1.1.1 OS Command Injection via Font File Names third-party-advisory