CVE-2026-18661

High

Description

In Eclipse Jetty, across various versions of `jetty-annotations`, and `jetty-eeN-annotations`, the Jakarta Spec authoritative url-pattern rules for mixed `@ServletSecurity` annotation, and `web.xml` defined `security-constraint` on the same `url-pattern` were not being applied if the `web.xml` had more than 1 `url-pattern` for a servlet, and had a `security-constraint` applying to only some of those `url-pattern` definitions.

SeverityHigh
CVSS8.8
Exploit probability—
ProductEclipse Foundation Org.eclipse.jetty.ee11:jetty-ee11-annotations
PublishedOct 15, 2026
First seenOct 15, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Eclipse Foundation org.eclipse.jetty.ee11:jetty-ee11-annotations12.1.0 ≤ v ≤ 12.1.11—
Eclipse Foundation org.eclipse.jetty.ee10:jetty-ee10-annotations12.1.0 ≤ v ≤ 12.1.11, 12.0.0 ≤ v ≤ 12.0.38—
Eclipse Foundation org.eclipse.jetty.ee9:jetty-ee9-annotations12.1.0 ≤ v ≤ 12.1.11, 12.0.0 ≤ v ≤ 12.0.38—
Eclipse Foundation org.eclipse.jetty.ee8:jetty-ee8-annotations12.1.0 ≤ v ≤ 12.1.11, 12.0.0 ≤ v ≤ 12.0.38—
Eclipse Foundation org.eclipse.jetty:jetty-annotations11.0.0 ≤ v ≤ 11.0.32, 10.0.0 ≤ v ≤ 10.0.32, 9.4.0 ≤ v ≤ 9.4.64—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2026-18661 · Eclipse Foundation Org.eclipse.jetty.ee11:jetty-ee11-annotations · Dark Radar