Vulnocalypse
Back to feed
38impact

HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

Eclipse Foundation Eclipse Jetty · CVE-2026-2332
0 news outlets0 CERTs and agencies0 researchers

What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
7.4
EPSS
1.3%
First seen
8 h ago
Status
corroborated

All Eclipse Foundation vulnerabilities