CVE-2017-16023
Regular Expression Denial of Service in decamelize
Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.
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
Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.
- Record
CVE-2017-16023- 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, CWE-20
- Updated
- 2026-11-02
CVE List No score
Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.
- Record
CVE-2017-16023- Weakness
- CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2018-0310 No score
Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.
- Record
EUVD-2018-0310- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q5c4-39f5-m68j
Regular Expression Denial of Service in decamelize
Affected versions of decamelize are susceptible to a denial of service vulnerability when user input is passed directly into decamelize.
Recommendation
Update to version 1.1.2 or later.
- Record
GHSA-q5c4-39f5-m68j- 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
OSV
Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.
- Record
CVE-2017-16023- 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 - Updated
- 2026-11-02
OSVGHSA-q5c4-39f5-m68j
Regular Expression Denial of Service in decamelize
Affected versions of decamelize are susceptible to a denial of service vulnerability when user input is passed directly into decamelize.
Recommendation
Update to version 1.1.2 or later.
- Record
GHSA-q5c4-39f5-m68j- 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 |
|---|---|---|
decamelizenpm |
1.1.0 to 1.1.1 | 1.1.2 |
decamelizenpm |
1.1.0 up to 1.1.2 | 1.1.2 |
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-2017-16023 is a high vulnerability (CVSS 7.5) in Decamelize Project Decamelize, published June 4, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.43%, the 73rd percentile. Fixed in decamelize 1.1.2.