npm package report

Is on-headers safe?

Q: Is on-headers safe to install?

CyberXYZ does not call a package safe in absolute terms. It records 1 known vulnerability for on-headers (npm), the worst rated LOW, and no malicious-package signal. Whether it is acceptable depends on the version you run.

Q: Does on-headers have known vulnerabilities?

Yes. CyberXYZ records 1 known vulnerability for on-headers (npm), the worst rated LOW. They are GHSA-76c9-3jph-rj3q.

Q: Which version of on-headers should I use?

1.1.0 or later clears every advisory recorded for on-headers (npm). Check the release you pick before installing it.

Q: How do I check on-headers before installing?

Search on-headers in CyberXYZ Check at https://cyberxyz.io/check?q=on-headers. The xyz Scanner checks a project's dependencies, and CyberXYZ Proxy checks each package as it is installed.

on-headers (npm) has 1 known vulnerability, the worst rated LOW. Upgrade to 1.1.0 or later to clear it. No malicious-package signal is recorded.

// reach

0 direct dependencies

none carry a known advisory

33 packages depend on it

an advisory here reaches each of them

Create a free accountfor every dependency path, dependent and what to upgrade

// ai model usage

Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.

cvss

3.4

low

CVSS v3.1 base score out of 10

epss

0.21%

low

chance of exploitation in 30 days, 11th percentile of all CVEs

xyz score

2.2

low

CyberXYZ composite out of 10

fig. 01 — GHSA-76c9-3jph-rj3q, the advisory selected below

// 1 advisories

GHSA-76c9-3jph-rj3q

LOWGitHub ratingCVE-2025-7339

A bug in on-headers versions < 1.1.0 may result in response headers being inadvertently modified when an array is passed to response.writeHead()

Full advisory text at GitHub advisory or NVD.

// cvss v3.1 vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Attack vector: Local
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: None

// questions

Is on-headers safe to install?

CyberXYZ does not call a package safe in absolute terms. It records 1 known vulnerability for on-headers (npm), the worst rated LOW, and no malicious-package signal. Whether it is acceptable depends on the version you run.

Does on-headers have known vulnerabilities?

Yes. CyberXYZ records 1 known vulnerability for on-headers (npm), the worst rated LOW. They are GHSA-76c9-3jph-rj3q.

Which version of on-headers should I use?

1.1.0 or later clears every advisory recorded for on-headers (npm). Check the release you pick before installing it.

How do I check on-headers before installing?

Search on-headers in CyberXYZ Check at https://cyberxyz.io/check?q=on-headers. The xyz Scanner checks a project's dependencies, and CyberXYZ Proxy checks each package as it is installed.

Checked 2026-11-14 at 07:04 UTC. The most recent advisory here was published 2025-07-17. Updated continuously from NVD, GHSA, OSV and CNA feeds.