CyberSecBulletin
CVE-2026-1605NVD status: Modified

Eclipse Jetty: Missing Release of Memory after Effective Lifetime

Published Updated By the CyberSecBulletin desk

CVE-2026-1605 is a high-severity missing release of memory after effective lifetime vulnerability in Eclipse Jetty from Eclipse Foundation, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Eclipse Jetty versions: 12.0.0 through 12.0.31; 12.1.0. through 12.1.5. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.74% chance of exploitation within 30 days, higher than 55% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Jetty to 12.0.32 or 12.1.6, whichever matches your release line, or a later version.
  2. Read the advisory on github.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Eclipse FoundationEclipse Jetty12.0.0 through 12.0.31; 12.1.0. through 12.1.5Not stated
Red HatHawtIO HawtIO 4.4.0Not specified in the recordNot stated
Red HatRed Hat AMQ Broker 7.14.0Not specified in the recordNot stated
Red HatRed Hat JBoss Enterprise Application Platform 8.1Not specified in the recordNot stated
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Not specified in the recordNot stated
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.12Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.13Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.14Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.15Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.16Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.17Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.18Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.19Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.20Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.21Not specified in the recordNot stated
Red HatOpenShift Developer Tools and Services 4.22Not specified in the recordNot stated
Red HatRed Hat OpenShift Dev Spaces 3.28Not specified in the recordNot stated
Red HatOpenShift Developer Tools and ServicesNot specified in the recordNot stated
Red HatRed Hat build of Apache Camel for Spring Boot 4Not specified in the recordNot stated
Red HatRed Hat build of Apicurio Registry 2Not specified in the recordNot stated
Red HatRed Hat build of Apicurio Registry 3Not specified in the recordNot stated
Red HatRed Hat build of Debezium 2Not specified in the recordNot stated
Red HatRed Hat build of Debezium 3Not specified in the recordNot stated
Red HatRed Hat Data Grid 8Not specified in the recordNot stated

Version data comes from the organisation that assigned the CVE; 14 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
NoneNo data is disclosed.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by CNA (eclipse.org).

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighCNA (eclipse.org)
CVSS 3.17.5HighCNA

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.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

How developers prevent this class of flaw

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone. For example, glibc in Linux provides protection against free of invalid pointers. When using Xcode to target OS X or iOS, enable automatic reference counting (ARC). To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std
  • Use an abstraction library to abstract away risky APIs. Not a complete solution.
  • Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.

More Missing Release of Memory after Effective Lifetime vulnerabilities (CWE-401)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Eclipse Jetty

All Eclipse Jetty vulnerabilities

Recent Missing Release of Memory after Effective Lifetime vulnerabilities

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