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CVE PROGRAM SOURCE RECORD8.3 High

CVE-2026-19203

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 r

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Status
Published
Published
Updated
Assigning organization
eclipse

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Eclipse Foundation Eclipse Jetty

Default version status: unaffected

  • 12.1.0 to ≤ 12.1.11affected
  • 12.0.0 to ≤ 12.0.37affected
  • 11.0.0 to ≤ 11.0.31affected
  • 10.0.0 to ≤ 10.0.31affected
  • 9.4.0 to ≤ 9.4.63affected

References