CVE-2026-2332 — HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

Affected: Eclipse Foundation Eclipse Jetty, Red Hat HawtIO HawtIO 4.4.0, Red Hat AMQ Broker 7.13.5, Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14, Red Hat Build of Apache Camel 4.18 for Quarkus 3.33, Red Hat Enterprise Linux 9, Red Hat Satellite 6.16 for RHEL 8, Red Hat Satellite 6.16 for RHEL 9, Red Hat Satellite 6.17 for RHEL 9, Red Hat Satellite 6.18 for RHEL 9 and 32 more

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.

GHSA-355h-qmc2-wpwf — Jetty has HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

Affected: Maven: org.eclipse.jetty:jetty-http

### Description (as reported)

Jetty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks.

### Background

This vulnerability is a new variant discovered while researching the "Funky Chunks" HTTP request smuggling techniques: - https://w4ke.info/2025/06/18/funky-chunks.html - https://w4ke.info/2025/10/29/funky-chunks-2.html

The original research tested various chunk extension parsing differentials but did not test quoted-string handling within extension values.

### Technical Details

**RFC 9112 Section 7.1.1** defines chunked transfer encoding: ``` chunk = chunk-size [ chunk-ext ] CRLF chunk-data CRLF chunk-ext = *( BWS ";" BWS chunk-ext-name [ BWS "=" BWS chunk-ext-val ] ) chunk-ext-val = token / quoted-string ```

**RFC 9110 Section 5.6.4** defines quoted-string: ``` quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE ```

A quoted-string continues until the closing DQUOTE, and `\r\n` sequences are not permitted within the quotes.

### Vulnerability

Jetty terminates chunk header parsing at `\r\n` inside quoted strings instead of treating this as an error.

**Expected (RFC compliant):** ``` Chunk: 1;a="value\r\nhere"\r\n ^^^^^^^^^^^^^^^^^^ extension value Body: [1 byte after the real \r\n] ```

**Actual (jetty):** ``` Chunk: 1;a="value ^^^^^ terminates here (WRONG) Body: here"... treated as body/next request ```

### Proof of Concept

```python #!/usr/bin/env python3 import…

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CVE-2026-2332 — HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

GHSA-355h-qmc2-wpwf — Jetty has HTTP Request Smuggling via Chunked Extension Quoted-String Parsing