CVEvulnerability
CVE-2025-7339
3.4 LOW
Official page ↗
- Status
- Deferred
- Published
- 2025-07-17
- Last modified
- 2026-06-17
- Assigner
- ce714d77-add3-4f53-aff5-83d477b104bb
- CVSS 3.1 (ce714d77-add3-4f53-aff5-83d477b104bb)
- 3.4 LOW — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-241
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.
Related
Weakness · CWE (1)
- CWE-241 Improper Handling of Unexpected Data Type weakness
References
- https://cna.openjsf.org/security-advisories.html cna.openjsf.org
- https://github.com/expressjs/morgan/issues/315 github.com
- https://github.com/jshttp/on-headers/commit/c6e384908c9c6127d18831d16ab0bd96e1231867 github.com
- https://github.com/jshttp/on-headers/issues/15 github.com
- https://github.com/jshttp/on-headers/security/advisories/GHSA-76c9-3jph-rj3q github.com