Vulnerability in GNOME Epiphany
CVE-2026-18487
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.
EPSS: 0.003 (24.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 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.
Affected products
- Gnome Epiphany — versions 49.2
Weakness classification (CWE)
References
- patrick@puiterwijk.org (x_refsource_REDHAT, vdb-entry)
- patrick@puiterwijk.org (x_refsource_REDHAT, issue-tracking)
- patrick@puiterwijk.org
- patrick@puiterwijk.org
Frequently asked questions
- What is CVE-2026-18487?
- CVE-2026-18487 is a medium-severity vulnerability in GNOME Epiphany, classified under User Interface (UI) Misrepresentation of Critical Information. CVSS score: 5.4/10. Published 2026-08-06.
- How severe is CVE-2026-18487?
- Medium severity. CVSS v3 base score is 5.4 out of 10.