CVE-2025-7339
on-headers vulnerable to http response header manipulation
- State
- Published
- Severity
- 3.4 Low
- Published
- Jul 17, 2025
- Updated
- Jul 17, 2025
- Reserved
- Jul 7, 2025
Description
on-headers is a node.js middleware for listening to when a response writes headers. 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()`. Users should upgrade to version 1.1.0 to receive a patch. Uses are strongly 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.4 Low | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N | openjs |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
on-headersjshttp |
|
References
- https://github.com/jshttp/on-headers/security/advisories/GHSA-76c9-3jph-rj3q
- https://github.com/jshttp/on-headers/commit/c6e384908c9c6127d18831d16ab0bd96e1231867
- https://cna.openjsf.org/security-advisories.html
- https://github.com/expressjs/morgan/issues/315
- https://github.com/jshttp/on-headers/issues/15
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