CVE-2026-2332

HIGH 7.4

HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

CVSS Score

7.4

EPSS Score

1.1%

EPSS Percentile

63th

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.

CWE	CWE-444
Vendor	eclipse foundation
Product	eclipse jetty
Published	Apr 14, 2026
Last Updated	Jul 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

Eclipse Foundation / Eclipse Jetty

12.1.0 ≤ 12.1.6 12.0.0 ≤ 12.0.32 11.0.0 ≤ 11.0.27 10.0.0 ≤ 10.0.27 9.4.0 ≤ 9.4.59

References

NVD ↗ CVE.org ↗ EPSS Data ↗

Credits

🔍 https://github.com/xclow3n