Medium
epiphany-browser — security advisory
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.
- Products
- epiphany-browser
- Affected versions
- 3.16.3-1ubuntu1, 3.18.0-1ubuntu2, 3.18.1-1ubuntu1, 3.18.10-0ubuntu1, 3.18.11-0ubuntu1, 3.18.3-0ubuntu1, 3.18.5-0ubuntu1, 3.18.5-0ubuntu1.1, 3.26.1-1ubuntu1, 3.26.1-1ubuntu2, 3.26.1-1ubuntu4, 3.26.5.1-1ubuntu1, 3.27.90-1ubuntu1, 3.28.0.1-1ubuntu1, 3.28.1-1ubuntu1, 3.28.5-0ubuntu1, 3.28.6-0ubuntu1, 3.34.1-1, 3.34.1-1build1, 3.36.0-1, 3.36.1-1, 3.36.2-0ubuntu1, 3.36.3-0ubuntu1, 3.36.4-0ubuntu1, 3.36.4-0ubuntu2, 41.0-1, 41.0-2, 41.2-1, 41.3-1, 42.0-1, 42.1-1, 42.1-1ubuntu1, 42.4-0ubuntu1, 42~beta-1, 45.0-1, 45.1-1, 46.0-1, 46.0-2build1, 46.5-0ubuntu1, 46~alpha-1, 46~beta-1, 48.5-3, 49.1-1, 49.2-1, 49.2-2, 49.2-3, 49.2-3ubuntu1, 50.4-1, 50.4-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-18487
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:55 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-18487
epiphany-browser
Fixed versions: Not specified
epiphany-browser
Fixed versions: Not specified
epiphany-browser
Fixed versions: Not specified
epiphany-browser
Fixed versions: Not specified
epiphany-browser
Fixed versions: Not specified
epiphany-browser
Fixed versions: Not specified
epiphany-browser
Fixed versions: Not specified
Complete source record
{
"id": "4cdb0b1cb5b4dbbd5bb5b44b3385520acb303c6e12a3a2efdee1196dcfeffc6c",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-18487",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-18487",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2026-18487",
"products": [
{
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"evidence": "/affected/0/package/name"
},
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
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{
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{
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"evidence": "/affected/0/versions"
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"prerequisites": [],
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"affected_versions": [
{
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"evidence": "/affected/3/versions"
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{
"value": "41.0-2",
"evidence": "/affected/3/versions"
},
{
"value": "41.2-1",
"evidence": "/affected/3/versions"
},
{
"value": "41.3-1",
"evidence": "/affected/3/versions"
},
{
"value": "42~beta-1",
"evidence": "/affected/3/versions"
},
{
"value": "42.0-1",
"evidence": "/affected/3/versions"
},
{
"value": "42.1-1",
"evidence": "/affected/3/versions"
},
{
"value": "42.1-1ubuntu1",
"evidence": "/affected/3/versions"
},
{
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},
{
"name": {
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"evidence": "/affected/4/package/name"
},
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"evidence": "/affected/4/versions"
},
{
"value": "45.1-1",
"evidence": "/affected/4/versions"
},
{
"value": "46~alpha-1",
"evidence": "/affected/4/versions"
},
{
"value": "46~beta-1",
"evidence": "/affected/4/versions"
},
{
"value": "46.0-1",
"evidence": "/affected/4/versions"
},
{
"value": "46.0-2build1",
"evidence": "/affected/4/versions"
},
{
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"evidence": "/affected/4/versions"
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]
},
{
"name": {
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"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "49.2-3ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "50.4-1",
"evidence": "/affected/5/versions"
},
{
"value": "50.4-2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "epiphany-browser",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "48.5-3",
"evidence": "/affected/6/versions"
},
{
"value": "49.1-1",
"evidence": "/affected/6/versions"
},
{
"value": "49.2-1",
"evidence": "/affected/6/versions"
},
{
"value": "49.2-2",
"evidence": "/affected/6/versions"
},
{
"value": "49.2-3",
"evidence": "/affected/6/versions"
},
{
"value": "49.2-3ubuntu1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-18487",
"aliases": [
"UBUNTU-CVE-2026-18487"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
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"events": [
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]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/epiphany-browser?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
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"3.18.0-1ubuntu2",
"3.18.1-1ubuntu1",
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"3.18.5-0ubuntu1",
"3.18.5-0ubuntu1.1",
"3.18.10-0ubuntu1",
"3.18.11-0ubuntu1"
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},
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}
]
}
},
{
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"purl": "pkg:deb/ubuntu/epiphany-browser?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
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"3.26.1-1ubuntu2",
"3.26.1-1ubuntu4",
"3.26.5.1-1ubuntu1",
"3.27.90-1ubuntu1",
"3.28.0.1-1ubuntu1",
"3.28.1-1ubuntu1",
"3.28.5-0ubuntu1",
"3.28.6-0ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-18487.json"
},
"ecosystem_specific": {
"binaries": [
{
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"binary_version": "3.28.6-0ubuntu1"
},
{
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}
]
}
},
{
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"package": {
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},
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{
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},
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"50.4-1",
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"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"48.5-3",
"49.1-1",
"49.2-1",
"49.2-2",
"49.2-3",
"49.2-3ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-18487.json"
},
"ecosystem_specific": {
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{
"binary_name": "epiphany-browser",
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},
{
"binary_name": "epiphany-browser-data",
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]
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}
],
"modified": "2026-10-17T12:59:53.714879704Z",
"provider": "osv",
"upstream": [
"CVE-2026-18487"
],
"references": [
"https://ubuntu.com/security/CVE-2026-18487",
"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"
]
},
"related_cves": [
{
"value": "CVE-2026-18487",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 359886,
"published_at": "2026-08-06T22:16:00+00:00"
}