on-headers vulnerable to http response header manipulation
CVE-2025-7339 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2025-7339, released July 17, 2025. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| agama-web-ui · opensuse-leap 16.0 | 17+612.d8bf69336-160000.11.1 | OPENSUSE-SU-2026:20919-1 | Jun 8, 2026 |
| node-on-headers · Debian 13.5 (trixie) | 1.0.2-4 | DEBIAN-CVE-2025-7339 | Jul 17, 2025 |
| node-on-headers · Debian 14 | 1.0.2-4 | DEBIAN-CVE-2025-7339 | Jul 17, 2025 |
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