CVE-2026-2332
HTTP Request Smuggling via Chunked Extension Quoted-String Parsing
CRITICAL 9.1EPSS 1.3%
In Eclipse Jetty, the HTTP/1.1 parser is vulnerable to request smuggling when chunk extensions are used, similar to the "funky chunks" techniques outlined here: * https://w4ke.info/2025/06/18/funky-chunks.html * https://w4ke.info/2025/10/29/funky-chunks-2.html Jetty terminates chunk extension parsing at \r\n inside quoted strings instead of treating this as an error. POST / HTTP/1.1 Host: localhost Transfer-Encoding: chunked 1;ext="val X 0 GET /smuggled HTTP/1.1 ... Note how the chunk extension does not close the double quotes, and it is able to inject a smuggled request.
- Affected
- Eclipse Foundation · Eclipse Jetty
- CVSS v3.1 NVD
- 9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS v3.1 CNA
- 7.4 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - EPSS
- 1.31% chance of exploitation in the next 30 days, 70th percentile
- Published
- 2026-04-14
- Updated
- 2026-09-14
Proof-of-concept exploits (1)
Security advisories
- jetty/jetty.project/security/advisories/GHSA-355h-qmc2-wpwf
- https://gitlab.eclipse.org/security/cve-assignment/-/issues/89