jetty12: When Jetty's `HttpClient` make a request to a server through a forward proxy, the server may reply with a 407 (Proxy...
CVE-2026-77711 is fixed in jetty12 on 1 platform by DEBIAN-CVE-2026-77711 (version 12.0.39-1), released November 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| jetty12 · Debian 14 | 12.0.39-1 | DEBIAN-CVE-2026-77711 | Nov 4, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.