GHSA-9v62-24cr-58cx
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
What each source reports
GitHub Advisories Score used
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
- Record
GHSA-9v62-24cr-58cx- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSV
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
- Record
GHSA-9v62-24cr-58cx- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
node-sassnpm | 3.3.0 up to 4.13.1 | 4.13.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-9v62-24cr-58cx is a medium vulnerability (CVSS 5.9) in node-sass, published September 11, 2020. No source lists public exploit code. Fixed in node-sass 4.13.1.