Information Exposure Affecting org.eclipse.jetty:jetty-client package, versions [9.4.0-alpha0, 9.4.65)[10.0.0-alpha0, 10.0.33)[11.0.0-alpha0, 11.0.33)[12.0.0-alpha0, 12.0.39)[12.1.0-alpha0, 12.1.13)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published19 Oct 2026
- disclosed15 Oct 2026
- creditunam4, pyn3rd, 4ra1n
Introduced: 15 Oct 2026
NewCVE-2026-77711 (opens in a new tab)How to fix?
Upgrade org.eclipse.jetty:jetty-client to version 9.4.65, 10.0.33, 11.0.33, 12.0.39, 12.1.13 or higher.
Overview
org.eclipse.jetty:jetty-client is an is an asynchronous http client module fro jetty server.
Affected versions of this package are vulnerable to Information Exposure in the HttpClient. An attacker can obtain proxy authentication credentials by crafting a server that responds with a 407 (Proxy Authentication Required) status, causing the client to mistakenly forward the Proxy-Authentication header to the server.