CVE-2026-18660
CVE-2026-18660 · Jetty proxy blacklist performs case-sensitive matching of case-insensitive DNS hostnames
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.8 · High · EPSS 0.3%
- Published
- Updated
Stack: system
Affected products and versions
jetty12 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
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty12 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
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 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
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 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
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 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
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 Ubuntu:16.04:LTS
- Versions
- 9.2.14-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 Ubuntu:18.04:LTS
- Versions
- 9.2.22-2
- 9.2.22-3
- 9.2.23-1
- 9.4.15-1~18.04.1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 Ubuntu:20.04:LTS
- Versions
- 9.4.18-2build2
- 9.4.26-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 Ubuntu:22.04:LTS
- Versions
- 9.4.39-3
- 9.4.44-2
- 9.4.44-3
- 9.4.44-4
- 9.4.45-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 Ubuntu:24.04:LTS
- Versions
- 9.4.51-2
- 9.4.53-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty12 Ubuntu:26.10
- Versions
- 12.0.32-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 Ubuntu:26.10
- Versions
- 9.4.58-1
- 9.4.58-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty12 Ubuntu:26.04:LTS
- Versions
- 12.0.17-3.1
- 12.0.32-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
jetty9 Ubuntu:26.04:LTS
- Versions
- 9.4.57-1
- 9.4.57-1.1
- 9.4.58-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published