Infinite Loop in colors.js
The package colors after 1.4.0 are vulnerable to Denial of Service (DoS) that was introduced through an infinite loop in the americanFlag module. Unfortunately this appears to have been a purposeful attempt by a maintainer of colors to make the package unusable, other maintainers' controls over this package appear to have been revoked in an attempt to prevent them from fixing the issue. Vulnerable Code js for (let i = 666; i < Infinity; i++;) { Alternative Remediation Suggested * Pin dependancy to 1.4.0
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | colors | >= 1.4.1 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-23567
- https://github.com/Marak/colors.js/issues/285
- https://github.com/Marak/colors.js/issues/285%23issuecomment-1008212640
- https://github.com/Marak/colors.js/commit/074a0f8ed0c31c35d13d28632bd8a049ff136fb6%23diff-92bbac9a308cd5fcf9db165841f2d90ce981baddcb2b1e26cfff170929af3bd1R18
- https://github.com/Marak/colors.js
- https://snyk.io/blog/open-source-maintainer-pulls-the-plug-on-npm-packages-colors-and-faker-now-what
- https://snyk.io/vuln/SNYK-JS-COLORS-2331906
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-835- Platform
- npm
- Package
colors- Disclosed
- 21.01.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-gh88-3pxp-6fm8 - CC BY 4.0
Vulnerability history: colors
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 01.2022 01.2022
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- High 2
Disclosures per year
- 2022: 2
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Infinite Loop in colors.js this entry
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