CVE-2017-16099
Regular Expression Denial of Service in no-case
The no-case module is vulnerable to regular expression denial of service. When malicious untrusted user input is passed into no-case it can block the event loop causing a denial of service condition.
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
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The no-case module is vulnerable to regular expression denial of service. When malicious untrusted user input is passed into no-case it can block the event loop causing a denial of service condition.
- Record
CVE-2017-16099- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-400
- Updated
- 2026-11-02
CVE List No score
The no-case module is vulnerable to regular expression denial of service. When malicious untrusted user input is passed into no-case it can block the event loop causing a denial of service condition.
- Record
CVE-2017-16099- Weakness
- CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2018-0264 No score
The no-case module is vulnerable to regular expression denial of service. When malicious untrusted user input is passed into no-case it can block the event loop causing a denial of service condition.
- Record
EUVD-2018-0264- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-ff6r-5jwm-8292
Regular Expression Denial of Service in no-case
Affected versions of no-case are vulnerable to a regular expression denial of service when parsing untrusted user input.
Recommendation
Update to version 2.3.2 or later.
- Record
GHSA-ff6r-5jwm-8292- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVGHSA-ff6r-5jwm-8292
Regular Expression Denial of Service in no-case
Affected versions of no-case are vulnerable to a regular expression denial of service when parsing untrusted user input.
Recommendation
Update to version 2.3.2 or later.
- Record
GHSA-ff6r-5jwm-8292- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
no-casenpm |
before 2.3.2 | 2.3.2 |
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-2017-16099 is a high vulnerability (CVSS 7.5) in No-case Project No-case, published June 7, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.56%, the 75th percentile. Fixed in no-case 2.3.2.