All vulnerabilities
CVE-2026-18660GHSA-7wfj-j486-mxrf

Jetty proxy blacklist performs case-sensitive matching of case-insensitive DNS hostnames

Eclipse FoundationWeb servers
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 15 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.32%Chance of exploitation activity in the next 30 days, higher than 23% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published15 Oct 2026Updated 15 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

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.

Text from CVE List

Affected versions 5

  • Eclipse Foundationaffected: 12.1.0 through 12.1.11CVE List
  • Eclipse Foundationaffected: 12.0.0 through 12.0.38CVE List
  • Eclipse Foundationaffected: 11.0.0 through 11.0.32CVE List
  • Eclipse Foundationaffected: 10.0.0 through 10.0.32CVE List
  • Eclipse Foundationaffected: 9.0.0 through 9.4.64CVE List

References 2