CVE-2017-16203
coffe-script is malware
The coffe-script module exfiltrates sensitive data such as a user's private SSH key and bash history to a third party server during installation.
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
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The coffe-script module exfiltrates sensitive data such as a user's private SSH key and bash history to a third party server during installation.
- Record
CVE-2017-16203- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-506, CWE-200
- Updated
- 2026-11-02
CVE List No score
The coffe-script module exfiltrates sensitive data such as a user's private SSH key and bash history to a third party server during installation.
- Record
CVE-2017-16203- Weakness
- CWE-506
- Updated
- 2026-11-02
EUVDEUVD-2018-0405 No score
The coffe-script module exfiltrates sensitive data such as a user's private SSH key and bash history to a third party server during installation.
- Record
EUVD-2018-0405- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j49g-mp79-5vm5
coffe-script is malware
The coffe-script package is a piece of malware that steals sensitive data such as a user's private SSH key and bash history, sending them to attacker controlled locations.
All versions have been unpublished from the npm registry.
Recommendation
If you have found coffe-script installed in your environment, you should:
- Delete the package
- Clear your npm cache
- Ensure it is not present in any other package.json files on your system
- Regenerate your SSH keys, registry credentials, tokens, and any other sensitive credentials that may have been present in your bash history.
Additionally, any service which may have been exposed via credentials in your bash history or accessible via your ssh keys, such as a database, should be reviewed for indicators of compromise as well.
- Record
GHSA-j49g-mp79-5vm5- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-506
- Updated
- 2026-11-02
OSVGHSA-j49g-mp79-5vm5
coffe-script is malware
The coffe-script package is a piece of malware that steals sensitive data such as a user's private SSH key and bash history, sending them to attacker controlled locations.
All versions have been unpublished from the npm registry.
Recommendation
If you have found coffe-script installed in your environment, you should:
- Delete the package
- Clear your npm cache
- Ensure it is not present in any other package.json files on your system
- Regenerate your SSH keys, registry credentials, tokens, and any other sensitive credentials that may have been present in your bash history.
Additionally, any service which may have been exposed via credentials in your bash history or accessible via your ssh keys, such as a database, should be reviewed for indicators of compromise as well.
- Record
GHSA-j49g-mp79-5vm5- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-506
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
coffe-scriptnpm |
1.0.1 to 1.0.1 | None known |
coffe-scriptnpm |
Listed versions 1.0.1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-16203 is a high vulnerability (CVSS 7.5) in Coffescript Project Coffescript, published June 7, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.11%, the 65th percentile. No source names a fixed version.