CVE-2026-18660
HIGHCVSS 8.8/10EPSS 0.42%
Last modified
CVE-2026-18660 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Eclipse Foundation | — | >= 12.1.0, <= 12.1.11; >= 12.0.0, <= 12.0.38 |
| Eclipse Foundation | — | >= 11.0.0, <= 11.0.32; >= 10.0.0, <= 10.0.32; >= 9.0.0, <= 9.4.64 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-18660?
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.
How severe is CVE-2026-18660?
CVE-2026-18660 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.
How do I fix CVE-2026-18660?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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Are you affected by CVE-2026-18660?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST