CVE-2022-21165
Arbitrary Command Injection
All versions of package font-converter are vulnerable to Arbitrary Command Injection due to missing sanitization of input that potentially flows into the child_process.exec() function.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Arbitrary Command Injection
All versions of package font-converter are vulnerable to Arbitrary Command Injection due to missing sanitization of input that potentially flows into the child_process.exec() function.
- Record
CVE-2022-21165- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
EUVDEUVD-2022-6555
All versions of package font-converter are vulnerable to Arbitrary Command Injection due to missing sanitization of input that potentially flows into the child_process.exec() function.
- Record
EUVD-2022-6555- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g2c3-vwff-m3xr
Font-Converter Vulnerable to Arbitrary Command Injection
Overview
font-converter is a FontForge wrapper that allows conversion between different font formats (TTF, WOFF, OTF)
All versions of this package are vulnerable to Arbitrary Command Injection due to missing sanitization of input that potentially flows into the child_process.exec() function.
PoC
var PUT = require('font-converter');
var x = "$(touch success);# ";
try {
new PUT(x, x, x, x);
} catch (e) {
console.log(e);
}
- Record
GHSA-g2c3-vwff-m3xr- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
NVD
All versions of package font-converter are vulnerable to Arbitrary Command Injection due to missing sanitization of input that potentially flows into the child_process.exec() function.
- Record
CVE-2022-21165- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-g2c3-vwff-m3xr
Font-Converter Vulnerable to Arbitrary Command Injection
Overview
font-converter is a FontForge wrapper that allows conversion between different font formats (TTF, WOFF, OTF)
All versions of this package are vulnerable to Arbitrary Command Injection due to missing sanitization of input that potentially flows into the child_process.exec() function.
PoC
var PUT = require('font-converter');
var x = "$(touch success);# ";
try {
new PUT(x, x, x, x);
} catch (e) {
console.log(e);
}
- Record
GHSA-g2c3-vwff-m3xr- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
font-converternpm |
through 1.1.1 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-21165 is a critical vulnerability (CVSS 9.8) in Font Converter Project Converter, published August 29, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.07%, the 87th percentile. No source names a fixed version.