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Vulnerability · Published Mar 5, 2026 · Assigned by eclipse

CVE-2026-1605

High 7.5

In plain English

A high-severity uncontrolled resource consumption in Eclipse Jetty from Eclipse Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.7%top 45.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In Eclipse Jetty, versions 12.0.0-12.0.31 and 12.1.0-12.0.5, class GzipHandler exposes a vulnerability when a compressed HTTP request, with Content-Encoding: gzip, is processed and the corresponding response is not compressed. This happens because the JDK Inflater is allocated for decompressing the request, but it is not released because the release mechanism is tied to the compressed response. In this case, since the response is not compressed, the release mechanism does not trigger, causing the leak.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13jetty12no fix listedDEBIAN-CVE-2026-1605
Debian:14jetty1212.0.32-1DEBIAN-CVE-2026-1605
Mavenorg.eclipse.jetty:jetty-server12.0.32GHSA-xxh7-fcf3-rj7f
Mavenorg.eclipse.jetty:jetty-server12.1.6GHSA-xxh7-fcf3-rj7f
Ubuntu:26.04:LTSjetty12no fix listedUBUNTU-CVE-2026-1605
Ubuntu:26.10jetty12no fix listedUBUNTU-CVE-2026-1605
Ubuntu:22.04:LTSjetty9no fix listedUBUNTU-CVE-2026-1605
Ubuntu:24.04:LTSjetty9no fix listedUBUNTU-CVE-2026-1605
Ubuntu:25.10jetty9no fix listedUBUNTU-CVE-2026-1605
Ubuntu:26.04:LTSjetty9no fix listedUBUNTU-CVE-2026-1605
Ubuntu:26.10jetty9no fix listedUBUNTU-CVE-2026-1605

Affected products (as reported)

VendorProductVersions
Eclipse Foundation Eclipse Jetty 12.0.0 – through 12.0.3112.1.0. – through 12.1.5

Weakness: CWE-400, CWE-401, CWE-772 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References