Gzip Vulnerability in Eclipse Jetty Web Server
CVE-2026-1605

7.5HIGH

Key Information:

Vendor

Eclipse Foundation

Status
Eclipse Jetty
Vendor
CVE Published:
5 March 2026

What is CVE-2026-1605?

A vulnerability in Eclipse Jetty's GzipHandler can lead to resource leaks when processing compressed HTTP requests. In specific versions, when a request with Content-Encoding set to gzip is received but the corresponding response is not compressed, the JDK Inflater object used for decompression is not released properly. This oversight occurs because the release mechanism depends on the response being compressed, which does not trigger the release when it isn't, potentially allowing for resource exhaustion.

Affected Version(s)

Eclipse Jetty 12.0.0 <= 12.0.31

Eclipse Jetty 12.1.0. <= 12.1.5

References

https://github.com/jetty/jetty.project/security/advisorie...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Gleb Sizov (@glebashnik)
Bjørn Christian Seime (@bjorncs)
.