DEBIAN-CVE-2026-46625
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-46625
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-46625.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-46625
- Upstream
- Published
- 2026-06-10T22:16:59Z
- Modified
- 2026-09-10T08:47:28Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
JavaScript Cookie is a JavaScript API for handling cookies, client-side. Prior to version 3.0.7, js-cookie's internal assign() helper copies properties with for...in + plain assignment. When the source object is produced by JSON.parse, the JSON object's "proto" member is an own enumerable property, so the for…in enumerates it and the target[key] = source[key] write triggers the Object.prototype.proto setter on the fresh target ({}). The result is a per-instance prototype hijack: Object.prototype itself is untouched, but the merged attributes object now inherits attacker-controlled keys. Because the consuming set() function then enumerates the merged object with another for...in, every key the attacker placed on the polluted prototype lands in the resulting Set-Cookie string as an attribute pair. The attacker can set domain=, secure=, samesite=, expires=, and path= on cookies whose attributes the developer thought were locked down. This issue has been patched in version 3.0.7.
- References
Affected packages
Debian:12 / node-js-cookie
Package
- Name
- node-js-cookie
- Purl
- pkg:deb/debian/node-js-cookie?arch=source&distro=bookworm
Debian:13 / node-js-cookie
Package
- Name
- node-js-cookie
- Purl
- pkg:deb/debian/node-js-cookie?arch=source&distro=trixie
Debian:14 / node-js-cookie
Package
- Name
- node-js-cookie
- Purl
- pkg:deb/debian/node-js-cookie?arch=source&distro=forky