Vulnerability in Eclipse Foundation

[ Why it matters ]Priority signals

• Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund15 Oct 2026WID-SEC-2026-3992

  Eclipse Jetty: Multiple vulnerabilities Translated from German

  Risk highCVE-2026-18661CVE-2026-76184CVE-2026-19864+4 more CVEs

[ References ]References

• github.com/jetty/jetty.project/security/advisories/GHSA-7wfj-j486-mxrf
• gitlab.eclipse.org/security/cve-assignment/-/work_items/212