CVE-2026-19203 — Eclipse Foundation / Eclipse Jetty

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Eclipse Foundation / Eclipse Jetty	affected 12.1.0 through 12.1.11; affected 12.0.0 through 12.0.37; affected 11.0.0 through 11.0.31; affected 10.0.0 through 10.0.31; affected 9.4.0 through 9.4.63

CWE

CWE-444

References

https://github.com/jetty/jetty.project/security/advisories/GHSA-xc35-c22g-239h

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.