Descriptions

A vulnerability has been identified in armeria-xds versions 1.40.0 through 1.42.0, where DataSourcePolicy checks filename containment without resolving symbolic links, allowing a compromised or semi-trusted xDS control plane to cause the xDS client to read files outside configured allowed root directories when a symbolic link inside an allowed directory points outside it. In deployments using a credential injector, header-compatible text secrets may be exposed to an attacker-observable upstream.

Severity

  • CVSSv4.0 Score: 5.9 (CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)

Affected Versions

  • armeria-xds from 1.40.0 before 1.43.0

Fix

  • armeria-xds should be updated to latest version (>= 1.43.0).

Reference

  • https://www.cve.org/CVERecord?id=CVE-2026-121819
  • https://github.com/line/armeria/security/advisories/GHSA-m64h-m6r5-6jrx

Updated: