Resource exhaustion in Eclipse Jetty

CVE-2026-1605

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.007 (49.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-1605?
CVE-2026-1605 is a high-severity vulnerability in Eclipse Jetty, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-03-05.
How severe is CVE-2026-1605?
High severity. CVSS v3 base score is 7.5 out of 10.