PT-2026-87042 · Eclipse Foundation+1 · Eclipse Jetty+1
CVE-2026-19203
·
Published
2026-09-08
·
Updated
2026-09-08
CVSS v4.0
8.3
High
| Vector | AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N |
A client may issue specially crafted HTTP/1.1 chunked requests to a Jetty server that cause Jetty and an intermediary proxy to interpret different request boundaries, potentially resulting in HTTP request smuggling.
This is caused by Jetty accepting a lone LF character as a terminator in parts of chunked request parsing. Depending on the Jetty version and configured HTTP compliance mode, this may occur in chunk extensions, chunk data termination, or trailer termination.
Exploit
Fix
HTTP Request/Response Smuggling
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Weakness Enumeration
Related Identifiers
Affected Products
Eclipse Jetty
Jetty.Project