CVE-2026-18660CWE-178CWE-918ssrf

CVE-2026-18660

published October 15, 2026

CVSS
8.8
EPSS
0%
Percentile
23.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.8 · NONE
CVSS v4.0
8.8 · 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
EPSS
0.00315 · 23.1th percentile
Weaknesses
CWE-178 · Improper Handling of Case Sensitivity; CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-10-15T14:17Z
References (3)
https://github.com/jetty/jetty.project/security/advisories/GHSA-7wfj-j486-mxrf · [email protected]https://gitlab.eclipse.org/security/cve-assignment/-/work_items/212 · [email protected]https://github.com/jetty/jetty.project/security/advisories/GHSA-7wfj-j486-mxrf · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 16 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 15 OCT 09:38Z
    Jetty proxy blacklist performs case-sensitive matching of case-insensitive DNS hostnames
    cvelistv5
  • 15 OCT 09:38Z
    Jetty proxy blacklist performs case-sensitive matching of case-insensitive DNS hostnames
    cvelistv5