High
Jetty proxy blacklist performs case-sensitive matching of case-insensitive DNS hostnames
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.
Announced Source revision 1
Original source ↗CVE-2026-18660
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-18660
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Eclipse Foundation",
"versions": [
{
"status": "affected",
"version": "12.1.0",
"versionType": "semver",
"lessThanOrEqual": "12.1.11"
},
{
"status": "affected",
"version": "12.0.0",
"versionType": "semver",
"lessThanOrEqual": "12.0.38"
}
],
"packageName": "org.eclipse.jetty:jetty-server",
"collectionURL": "https://repo.maven.apache.org/maven2/",
"defaultStatus": "unaffected"
},
{
"vendor": "Eclipse Foundation",
"versions": [
{
"status": "affected",
"version": "11.0.0",
"versionType": "semver",
"lessThanOrEqual": "11.0.32"
},
{
"status": "affected",
"version": "10.0.0",
"versionType": "semver",
"lessThanOrEqual": "10.0.32"
},
{
"status": "affected",
"version": "9.0.0",
"versionType": "semver",
"lessThanOrEqual": "9.4.64"
}
],
"packageName": "org.eclipse.jetty:jetty-proxy",
"collectionURL": "https://repo.maven.apache.org/maven2/",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-18660
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #28706 · Revision 1
- Added to Heist Feed
- Publisher date