LOW3.4
GHSA-76c9-3jph-rj3q
on-headers is vulnerable to http response header manipulation
Quick fix
GHSA-76c9-3jph-rj3q — on-headers: upgrade to the fixed version with the command below.
npm install on-headers@1.1.0Details
### Impact
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()`
### Patches
Users should upgrade to `1.1.0`
### Workarounds
Uses are encouraged to upgrade to `1.1.0`, but this issue can be worked around by passing an object to `response.writeHead()` rather than an array.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/jshttp/on-headers/security/advisories/GHSA-76c9-3jph-rj3q[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2025-7339[ADVISORY]
- https://github.com/expressjs/morgan/issues/315[WEB]
- https://github.com/jshttp/on-headers/issues/15[WEB]
- https://github.com/jshttp/on-headers/commit/c6e384908c9c6127d18831d16ab0bd96e1231867[WEB]
- https://cna.openjsf.org/security-advisories.html[WEB]
- https://github.com/jshttp/on-headers[PACKAGE]