CVE-2026-77711: Eclipse Foundation Eclipse Jetty vulnerability
Eclipse Foundation · Eclipse Jetty
Affected: Eclipse Foundation Eclipse Jetty · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 38% of scored CVEs
DescriptionCVE.org
When Jetty's `HttpClient` make a request to a server through a forward proxy, the server may reply with a 407 (Proxy Authentication Required). The client mistakenly interprets the 407 as coming from the proxy, so it re-sends the request with the `Proxy-Authentication` header, which arrives to the server, that now has access to the proxy credentials.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Eclipse Foundation · Eclipse Jettyfrom 12.1.0 up to and including 12.1.12; from 12.0.0 up to and including 12.0.38; from 11.0.0 up to and including 11.0.32; from 10.0.0 up to and including 10.0.32; from 9.4.0 up to and including 9.4.64
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Eclipse Foundation
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-77711 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.