{"id":"DEBIAN-CVE-2025-7339","details":"on-headers is a node.js middleware for listening to when a response writes headers. A bug in on-headers versions `\u003c1.1.0` 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.","modified":"2026-09-01T16:06:23.393577397Z","published":"2025-07-17T16:15:35.403Z","upstream":["CVE-2025-7339"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-7339"}],"affected":[{"package":{"name":"node-on-headers","ecosystem":"Debian:12","purl":"pkg:deb/debian/node-on-headers?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-2","1.0.2-4","1.1.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-7339.json"}},{"package":{"name":"node-on-headers","ecosystem":"Debian:13","purl":"pkg:deb/debian/node-on-headers?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2-4"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-7339.json"}},{"package":{"name":"node-on-headers","ecosystem":"Debian:14","purl":"pkg:deb/debian/node-on-headers?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2-4"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-7339.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N"}]}