CVE Tools
Sign in

CVE-2026-18487

Epiphany: address bar / host spoofing via userinfo in ephy_uri_get_decoded_host()

Published: Aug 6, 2026Updated: Aug 7, 2026 Sources: CVE List NVDCWE-451
5.4MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 75.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-451

Affected Products

GNOME
oss-project·USaka gnome project, glib
EpiphanyOn-premDesktop App
Consumer Software / browser

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://access.redhat.com/security/cve/CVE-2026-18487
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2509570
bugzilla.redhat.com
https://gitlab.gnome.org/GNOME/epiphany/-/commit/0dde1d369458ac5c44b74b5ad3c433f825f6f8af
gitlab.gnome.org
and 1 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-18487 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows