Description
A client may issue specially crafted HTTP/1.1 chunked requests to a Jetty server that cause Jetty and an intermediary proxy to interpret different request boundaries, potentially resulting in HTTP request smuggling.
This is caused by Jetty accepting a lone LF character as a terminator in parts of chunked request parsing. Depending on the Jetty version and configured HTTP compliance mode, this may occur in chunk extensions, chunk data termination, or trailer termination.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Eclipse Foundation | Eclipse Jetty | 12.1.0 – ≤ 12.1.11, 12.0.0 – ≤ 12.0.37, 11.0.0 – ≤ 11.0.31, 10.0.0 – ≤ 10.0.31, 9.4.0 – ≤ 9.4.63 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jetty12 | 12.0.39-1 | — |
| Debian 14 | jetty9 | No fix yet | — |
| Debian 13 | jetty9 +1 | No fix yet | — |
| Debian 12 | jetty9 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | jetty9 +1 | No fix yet | — |
| Ubuntu 26.04 LTS | jetty9 +1 | No fix yet | — |
| Ubuntu 24.04 LTS | jetty9 | No fix yet | — |
| Ubuntu 22.04 LTS | jetty9 | No fix yet | — |
| Ubuntu 20.04 LTS | jetty9 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | jetty9 | No fix yet | — |
| Ubuntu 16.04 LTS | jetty +1 | No fix yet | — |
| Ubuntu 14.04 LTS | jetty | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Satellite Capsule 6 | openvox-agent | 8.31.1-1.el8sat | RHSA-2026:92861, RHSA-2026:92860, RHSA-2026:92859 |
| Red Hat Satellite Capsule 6 | openvox-server | 8.17.0-1.el8sat | RHSA-2026:92861, RHSA-2026:92860, RHSA-2026:92859 |
| Red Hat Satellite Capsule 6 | python3.12-brotli | 1.2.1-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-django | 4.2.30-3.el9pc | RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-gitpython | 3.2.1-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-pillow | 13.0.0-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-pulp-ansible | 1:0.28.10-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-urllib3 | 2.8.0-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite 6 | openvox-agent | 8.31.1-1.el8sat | RHSA-2026:92861, RHSA-2026:92860, RHSA-2026:92859 |
| Red Hat Satellite 6 | openvox-server | 8.17.0-1.el8sat | RHSA-2026:92861, RHSA-2026:92860, RHSA-2026:92859 |
| Red Hat Satellite 6 | python3.12-brotli | 1.2.1-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-django | 4.2.30-3.el9pc | RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-gitpython | 3.2.1-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-pillow | 13.0.0-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-pulp-ansible | 1:0.28.10-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-urllib3 | 2.8.0-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite 6 | yggdrasil-worker-forwarder | 0.1.1-1.el8sat | RHSA-2026:92861, RHSA-2026:92860, RHSA-2026:92859 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | kafka-4.1 | 4.1.2-r13 | — |
| Wolfi rolling | kafka-4.2 | 4.2.2-r4 | — |
| Wolfi rolling | strimzi-kafka-operator-kafka-init +5 | 1.2.0-r11 | — |
| Wolfi rolling | strimzi-kafka-operator-kafka-thirdparty-libs-cc | No fix yet | — |
Advisories 5
- RHSA-2026:92858 Red Hat Security Advisory: Satellite 6.16 EUS security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:92859 Red Hat Security Advisory: Satellite 6.17 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:92860 Red Hat Security Advisory: Satellite 6.18 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:92861 Red Hat Security Advisory: Satellite 6.19 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- WID-SEC-2026-3434 Eclipse Jetty: Schwachstelle ermöglicht Darstellen falscher Informationen und Offenlegung BSI CERT-Bund (WID) · Oct 29, 2026