High
jetty12, jetty9 — security advisory
In Eclipse Jetty, across various versions of `jetty-server`, and `jetty-proxy`, the host whitelist/blacklist is case-sensitive, and would allow hosts through that only differ by case.
- Products
- jetty12, jetty9
- Affected versions
- 12.0.17-3, 12.0.17-3.1, 12.0.17-3.1~deb13u1, 12.0.32-1, 12.0.32-2, 12.0.33-1, 12.0.39-1, 12.0.40-1, 9.4.50-4, 9.4.50-4+deb12u1, 9.4.50-4+deb12u2, 9.4.50-4+deb12u3, 9.4.51-1, 9.4.51-2, 9.4.52-1, 9.4.53-1, 9.4.54-1, 9.4.55-1, 9.4.56-1, 9.4.57-0+deb12u1, 9.4.57-1, 9.4.57-1.1, 9.4.57-1.1~deb12u1, 9.4.57-1.1~deb13u1, 9.4.58-1, 9.4.58-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-18660
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 19:45 UTC · Revision 1
Source evidence
In Eclipse Jetty, across various versions of `jetty-server`, and `jetty-proxy`, the host whitelist/blacklist is case-sensitive, and would allow hosts through that only differ by case.
osv:DEBIAN-CVE-2026-18660
jetty12
Fixed versions: Not specified
jetty12
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
Complete source record
{
"id": "d1e61936f23ee4d1128e6bd413b8d139c3807ef817daa1cfe9992b1a6426d5d4",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-18660",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-18660",
"summary": "In Eclipse Jetty, across various versions of `jetty-server`, and `jetty-proxy`, the host whitelist/blacklist is case-sensitive, and would allow hosts through that only differ by case.",
"evidence": "osv:DEBIAN-CVE-2026-18660",
"products": [
{
"name": {
"value": "jetty12",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "12.0.17-3",
"evidence": "/affected/0/versions"
},
{
"value": "12.0.17-3.1",
"evidence": "/affected/0/versions"
},
{
"value": "12.0.17-3.1~deb13u1",
"evidence": "/affected/0/versions"
},
{
"value": "12.0.32-1",
"evidence": "/affected/0/versions"
},
{
"value": "12.0.32-2",
"evidence": "/affected/0/versions"
},
{
"value": "12.0.33-1",
"evidence": "/affected/0/versions"
},
{
"value": "12.0.39-1",
"evidence": "/affected/0/versions"
},
{
"value": "12.0.40-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "jetty12",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "12.0.17-3",
"evidence": "/affected/1/versions"
},
{
"value": "12.0.17-3.1",
"evidence": "/affected/1/versions"
},
{
"value": "12.0.17-3.1~deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "12.0.32-1",
"evidence": "/affected/1/versions"
},
{
"value": "12.0.32-2",
"evidence": "/affected/1/versions"
},
{
"value": "12.0.33-1",
"evidence": "/affected/1/versions"
},
{
"value": "12.0.39-1",
"evidence": "/affected/1/versions"
},
{
"value": "12.0.40-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "jetty9",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.4.50-4",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.50-4+deb12u1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.50-4+deb12u2",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.50-4+deb12u3",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.51-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.51-2",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.52-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.53-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.54-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.55-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.56-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.57-0+deb12u1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.57-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.57-1.1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.57-1.1~deb12u1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.57-1.1~deb13u1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.58-1",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.58-2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "jetty9",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.4.57-1",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.57-1.1",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.57-1.1~deb12u1",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.57-1.1~deb13u1",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.58-1",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.58-2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "jetty9",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.4.57-1",
"evidence": "/affected/4/versions"
},
{
"value": "9.4.57-1.1",
"evidence": "/affected/4/versions"
},
{
"value": "9.4.57-1.1~deb12u1",
"evidence": "/affected/4/versions"
},
{
"value": "9.4.57-1.1~deb13u1",
"evidence": "/affected/4/versions"
},
{
"value": "9.4.58-1",
"evidence": "/affected/4/versions"
},
{
"value": "9.4.58-2",
"evidence": "/affected/4/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-18660",
"aliases": [
"DEBIAN-CVE-2026-18660"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jetty12",
"purl": "pkg:deb/debian/jetty12?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"12.0.17-3",
"12.0.17-3.1",
"12.0.17-3.1~deb13u1",
"12.0.32-1",
"12.0.32-2",
"12.0.33-1",
"12.0.39-1",
"12.0.40-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18660.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jetty12",
"purl": "pkg:deb/debian/jetty12?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"12.0.17-3",
"12.0.17-3.1",
"12.0.17-3.1~deb13u1",
"12.0.32-1",
"12.0.32-2",
"12.0.33-1",
"12.0.39-1",
"12.0.40-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18660.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jetty9",
"purl": "pkg:deb/debian/jetty9?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"9.4.50-4",
"9.4.50-4+deb12u1",
"9.4.50-4+deb12u2",
"9.4.50-4+deb12u3",
"9.4.51-1",
"9.4.51-2",
"9.4.52-1",
"9.4.53-1",
"9.4.54-1",
"9.4.55-1",
"9.4.56-1",
"9.4.57-0+deb12u1",
"9.4.57-1",
"9.4.57-1.1",
"9.4.57-1.1~deb12u1",
"9.4.57-1.1~deb13u1",
"9.4.58-1",
"9.4.58-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18660.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jetty9",
"purl": "pkg:deb/debian/jetty9?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"9.4.57-1",
"9.4.57-1.1",
"9.4.57-1.1~deb12u1",
"9.4.57-1.1~deb13u1",
"9.4.58-1",
"9.4.58-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18660.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jetty9",
"purl": "pkg:deb/debian/jetty9?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"9.4.57-1",
"9.4.57-1.1",
"9.4.57-1.1~deb12u1",
"9.4.57-1.1~deb13u1",
"9.4.58-1",
"9.4.58-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18660.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-16T07:00:08.936901646Z",
"provider": "osv",
"upstream": [
"CVE-2026-18660"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-18660"
]
},
"related_cves": [
{
"value": "CVE-2026-18660",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 337923,
"published_at": "2026-10-15T10:17:12.097+00:00"
}