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Advisory record · GHSA-xxh7-fcf3-rj7f

The Eclipse Jetty Server Artifact has a Gzip request memory leak

CVSS 7.5 HighEPSS 0.0074 · 55th percentile

Published by the GitHub Advisory Database at 5 Mar 2026, 21:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.eclipse.jetty:jetty-serverMaven>=12.1.0, <12.1.6 || >=12.0.0, <12.0.3212.1.6, 12.0.32
Identifiers
GHSA-xxh7-fcf3-rj7f · CVE-2026-1605
Weakness (CWE)
CWE-400 · CWE-401 · CWE-772
Tags
Published
5 Mar 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Eclipse Jetty's jetty-server (org.eclipse.jetty:jetty-server) versions 12.0.0 up to 12.0.32 and 12.1.0 up to 12.1.6 are affected, per the affected ranges; fixed versions are 12.0.32 and 12.1.6. When GzipHandler receives a request with gzip Content-Encoding and the response is not gzip-encoded, inflater objects are not released, leaking native memory. A remote client can send such requests repeatedly to cause off-heap out-of-memory errors and crash the JVM. Upgrade to 12.0.32 or 12.1.6; as a workaround, disable GzipHandler.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (eclipse)
  • CISA KEV Not listed.
  • EPSS 0.0074, the 55th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 5 Mar 2026, 09:41 UTC Published by the maintainers as a GitHub repository advisory
  2. 31 Oct 2026, 14:17 UTC First seen by agentprime
  3. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.