CVE-2026-19203
8.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Eclipse Foundation | Eclipse Jetty | 12.1.0 <= 12.1.11 | affected |
| Eclipse Foundation | Eclipse Jetty | 12.0.0 <= 12.0.37 | affected |
| Eclipse Foundation | Eclipse Jetty | 11.0.0 <= 11.0.31 | affected |
| Eclipse Foundation | Eclipse Jetty | 10.0.0 <= 10.0.31 | affected |
| Eclipse Foundation | Eclipse Jetty | 9.4.0 <= 9.4.63 | affected |
Weaknesses
- CWE-444: CWE-444 Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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