CVE-2026-110648: Command Injection (CVSS 7.8)

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.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0115

Probability of exploitation

0.67%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-78 OS Command Injection

References

Other References

https://github.com/adamarcanov/compress-fonts/blob/7b07d20b3125a7bba8f933eeca21f5a09c8fb62a/index.js#L48 https://github.com/adamarcanov/compress-fonts/commit/12002e5866af2163cd34424baae5a53338951a5d https://github.com/adamarcanov/compress-fonts/pull/1 https://www.vulncheck.com/advisories/offactory-compress-fonts-before-1.1.1-os-command-injection-via-font-file-names

Frequently Asked Questions

What is CVE-2026-110648? +

@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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-110648? +

CVE-2026-110648 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0115, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-110648? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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