CVE-2026-2332

HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

Published Apr 14, 2026 CVSS 3.1 · 7.4 High EPSS 1.4% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-355h-qmc2-wpwf Jetty has HTTP Request Smuggling via Chunked Extension Quoted-String Parsing
References
Link Providers
https://access.redhat.com/errata/RHSA-2026:10175 cve-icon
https://access.redhat.com/errata/RHSA-2026:14272 cve-icon
https://access.redhat.com/errata/RHSA-2026:17668 cve-icon
https://access.redhat.com/errata/RHSA-2026:20568 cve-icon
https://access.redhat.com/errata/RHSA-2026:21773 cve-icon
https://access.redhat.com/errata/RHSA-2026:22453 cve-icon
https://access.redhat.com/errata/RHSA-2026:25089 cve-icon
https://access.redhat.com/errata/RHSA-2026:50221 cve-icon
https://access.redhat.com/errata/RHSA-2026:50222 cve-icon
https://access.redhat.com/errata/RHSA-2026:50223 cve-icon
https://access.redhat.com/errata/RHSA-2026:50263 cve-icon
https://access.redhat.com/errata/RHSA-2026:60239 cve-icon
https://access.redhat.com/errata/RHSA-2026:60246 cve-icon
https://access.redhat.com/errata/RHSA-2026:60247 cve-icon
https://access.redhat.com/errata/RHSA-2026:60248 cve-icon
https://access.redhat.com/errata/RHSA-2026:60249 cve-icon
https://access.redhat.com/errata/RHSA-2026:60250 cve-icon
https://access.redhat.com/errata/RHSA-2026:60251 cve-icon
https://access.redhat.com/errata/RHSA-2026:60252 cve-icon
https://access.redhat.com/errata/RHSA-2026:60254 cve-icon
https://access.redhat.com/errata/RHSA-2026:60256 cve-icon
https://access.redhat.com/errata/RHSA-2026:60259 cve-icon
https://access.redhat.com/security/cve/CVE-2026-2332 cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2458187 cve-icon
https://github.com/jetty/jetty.project/security/advisories/GHSA-355h-qmc2-wpwf cve-icon cve-icon cve-icon
https://gitlab.eclipse.org/security/cve-assignment/-/issues/89 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-2332 cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2332.json cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-2332 cve-icon
History
Type Values Removed Values Added
Description 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. 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.
Type Values Removed Values Added
CPEs cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Eclipse
Eclipse jetty
Vendors & Products Eclipse
Eclipse jetty
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title HTTP Request Smuggling via Chunked Extension Quoted-String Parsing
Weaknesses CWE-444
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
eclipse
Published
Updated
Sep 14, 2026, 12:04 PM
Reserved
Feb 11, 2026, 9:56 AM
Status
Modified
Published
Apr 14, 2026, 12:16 PM
Modified
Oct 26, 2026, 9:10 PM
Severity
Important
Public date
Apr 14, 2026, 10:59 AM