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.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse Jetty | unaffected |
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Tue, 08 Sep 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Weaknesses | CWE-444 | |
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| Metrics |
cvssV4_0
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: eclipse
Published:
Updated: 2026-09-08T12:08:37.576Z
Reserved: 2026-08-07T07:32:16.708Z
Link: CVE-2026-19203
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')