CVE-2026-18487
Publication date 7 August 2026
Last updated 7 August 2026
Ubuntu priority
Description
A flaw was found in Epiphany. An issue in how the browser reads web addresses allows attackers to fake the domain name shown in the address bar. If a user clicks a specially crafted link containing a colon (for example, [https://trusted.com:80@attacker.com/](https://trusted.com:80@attacker.com/)), the address bar and security menus will display the safe website (trusted.com) but it will actually load the attacker website (attacker.com) on the screen. This allows attackers to create convincing phishing pages to trick users into trusting a malicious site.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| epiphany-browser | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
5.4 · Medium
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-18487
- https://access.redhat.com/security/cve/CVE-2026-18487
- https://bugzilla.redhat.com/show_bug.cgi?id=2509570
- https://gitlab.gnome.org/GNOME/epiphany/-/commit/0dde1d369458ac5c44b74b5ad3c433f825f6f8af
- https://gitlab.gnome.org/GNOME/epiphany/-/work_items/2897