Denial of Service in node-sass
Affected versions of node-sass are vulnerable to Denial of Service (DoS). Crafted objects passed to the renderSync function may trigger C++ assertions in CustomImporterBridge::get_importer_entry and CustomImporterBridge::post_process_return_value that crash the Node process. This may allow attackers to crash the system's running Node process and lead to Denial of Service.
Recommendation
Upgrade to version 4.13.1 or later
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | node-sass | >= 3.3.0, < 4.13.1 | 4.13.1 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-400- Platform
- npm
- Package
node-sass- Disclosed
- 11.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-9v62-24cr-58cx - CC BY 4.0
Vulnerability history: node-sass
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
- 09.2020 02.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 2
Disclosures per year
- 2020: 1
- 2021: 0
- 2022: 1
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Denial of Service in node-sass this entry
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