Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

eclipse-xtext/xtext

              main @ 4464973
            

Fixes

CVEs

HIGH

Peak severity

66.7%

Coverage

Highlights

Auth Bypass: 1 prior fix. Scrutinize any change in this area.

org.eclipse.xtend.core/src/org/eclipse/xtend/core/macro/FilteringClassLoader.xtend: most-fixed (1 issue). Treat as high-risk during review.

1 high-severity fix in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Auth Bypass: The servlet lacked a centralized permission verification mechanism before serving dispatch requests, potentially exposing internal services to unauthorized users. This was addressed by introducing a checkPermission hook in the request lifecycle.

Sandbox Escape: Incomplete package prefix validation in the FilteringClassLoader allowed macro execution to load arbitrary system classes, bypassing intended compiler isolation boundaries. This was resolved with strict canonicalization and prefix checks.

Prototype Pollution: The mixin utility in the web UI examples was susceptible to prototype pollution via unvalidated assignment of arbitrary properties, which could lead to property injection and potential cross-site scripting.