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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.

PUBLISHED Reserved 2026-02-11 | Published 2026-04-14 | Updated 2026-04-15 | Assigner eclipse




HIGH: 7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-444 Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')

Product status

Default status
unaffected

12.1.0 (semver)
affected

12.0.0 (semver)
affected

11.0.0 (semver)
affected

10.0.0 (semver)
affected

9.4.0 (semver)
affected

Credits

https://github.com/xclow3n reporter

References

github.com/...roject/security/advisories/GHSA-355h-qmc2-wpwf third-party-advisory

gitlab.eclipse.org/security/cve-assignment/-/issues/89 issue-tracking

cve.org (CVE-2026-2332)

nvd.nist.gov (CVE-2026-2332)

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