Welcome to the new Snyk Vulnerability Database experience!
We've upgraded the information available here with data you may have seen previously within Snyk Advisor. For a more comprehensive update, please refer to our product updates page (opens in a new tab) .

on-headers vulnerabilities

Execute a listener when a response is about to write headers

Licenses: MIT

Published: 11 years ago Last updated: 3 months ago Latest version: 1.1.0 Latest non-vulnerable version: 1.1.0

npm

GitHub

83/100

securityNo known security issues
popularityInfluential project
maintenanceHealthy
communitySustainable

Maintenance

HEALTHY

Commit Frequency

Loading chart...

Open Issues: 1
Open PR: 11
New PRS: 0
Last Release: 3 months ago
Last Commit: 3 months ago
Maintainers: 3

Further analysis of the maintenance status of on-headers based on released npm versions cadence, the repository activity, and other data points determined that its maintenance is Healthy.

We found that on-headers demonstrates a positive version release cadence with at least one new version released in the past 12 months.

In the past month we didn't find any pull request activity or change in issues status has been detected for the GitHub repository.

Popularity

INFLUENTIAL PROJECT

Weekly downloads (27.4M)

GitHub Stars: 161
Forks: 30
Contributors: 0

The npm package on-headers receives a total of 27,381,792 downloads a week. As such, we scored on-headers popularity level to be Influential project.

Based on project statistics from the GitHub repository for the npm package on-headers, we found that it has been starred 161 times.

Downloads are calculated as moving averages for a period of the last 12 months, excluding weekends and known missing data points.

Community

SUSTAINABLE

Readme.md: Yes
Contributing.md: No
Code of Conduct: Yes
Contributors: 0
Funding: Yes
LICENSE: MIT

This project has seen only 10 or less contributors.

License

MIT>=0;

Report a new vulnerability Found a mistake?

Direct Vulnerabilities

Known vulnerabilities in the on-headers package. This does not include vulnerabilities belonging to this package’s dependencies.

Fix vulnerabilities automatically

Snyk's AI Trust Platform automatically finds the best upgrade path and integrates with your development workflows. Secure your code at zero cost.

Fix for free

Security

NO KNOWN SECURITY ISSUES

Show only direct vulnerabilities in latest version

No vulnerabilities found in the latest version

There are 1 total vulnerabilities, but none affect the latest version (1.1.0)

Package versions

5 VERSIONS IN TOTAL

version	published	direct vulnerabilities
1.1.0	17 Jul, 2025	0 C 0 H 0 M 0 L
1.0.2	22 Feb, 2019	0 C 0 H 1 M 0 L
1.0.1	30 Sep, 2015	0 C 0 H 1 M 0 L
1.0.0	10 Aug, 2014	0 C 0 H 1 M 0 L
0.0.0	14 May, 2014	0 C 0 H 1 M 0 L

on-headers development dependencies

10 IN TOTAL

eslint eslint-config-standard eslint-plugin-import eslint-plugin-markdown eslint-plugin-node eslint-plugin-promise eslint-plugin-standard mocha nyc supertest