What is the CVSS score of CVE-2026-1605?

CVE-2026-1605 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Jetty are affected by CVE-2026-1605?

Eclipse Jetty versions 12.0.0-12.0.31 and 12.1.0-12.1.5 contain a HIGH severity vulnerability in GzipHandler that could allow attackers to exploit compressed HTTP requests, potentially leading to…. A patch is available.

How to fix or mitigate CVE-2026-1605?

Within 24 hours: Inventory all systems running Eclipse Jetty 12.x and identify which versions are deployed. Within 7 days: Implement compensating controls (disable gzip compression or restrict to trusted networks) and apply WAF rules blocking malformed gzip requests. Within 30 days: Monitor vendor advisories for patch availability and plan upgrade path to patched version once released; evaluate upgrading to Jetty versions outside the vulnerable range if available.

Jetty CVE-2026-1605

HIGH

Uncontrolled Resource Consumption (CWE-400)

2026-03-05 emo@eclipse.org

GHSA-xxh7-fcf3-rj7f

Jetty Denial Of Service

7.5

CVSS 3.1 · Vendor: eclipse

Severity by source

Vendor (eclipse) PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Red Hat

7.5 HIGH

qualitative

Primary rating from Vendor (eclipse).

CVSS VectorVendor: eclipse

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 05, 2026 - 10:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

189 maven packages depend on org.eclipse.jetty:jetty-server (65 direct, 124 indirect)

Ecosystem-wide dependent count for version 12.1.0.

DescriptionCVE.org

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.

AnalysisAI

Eclipse Jetty 12.0.0 through 12.0.31 and 12.1.0 through 12.1.5 suffer from a denial-of-service vulnerability in GzipHandler where decompressor resources leak when processing gzip-compressed requests that generate uncompressed responses. An unauthenticated remote attacker can exhaust server memory by repeatedly sending compressed requests, causing service degradation or unavailability. No patch is currently available.

Technical ContextAI

Classified as CWE-400 (Uncontrolled Resource Consumption). Affects Jetty. 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.