CVE-2026-19203A 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 re…
Updated under an hour ago ()
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It affects Eclipse Foundation Eclipse Jetty. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.3 HIGH (v4.0, CNA)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
- Weakness (CWE)
- CWE-444
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- eclipse
- NVD analysis
- Deferred
- Record last updated
- Sep 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Eclipse Foundation Eclipse Jetty eclipse_foundation:eclipse_jetty (from the name) | from 12.1.0 through 12.1.11; from 12.0.0 through 12.0.37; from 11.0.0 through 11.0.31; from 10.0.0 through 10.0.31; from 9.4.0 through 9.4.63 | CNA record |
References
- https://github.com/jetty/jetty.project/security/advisories/GHSA-xc35-c22g-239h
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.