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Medium · 5.9 CVE-2026-121819 EUVD-2026-117986

A vulnerability has been identified in armeria-xds versions 1.40.0 through 1.42.0, where DataSourcePolicy checks filename containment witho…

Published Nov 6, 2026 · Updated Nov 10, 2026 · Assigned by LY-Corporation

Description

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.

Affected products

VendorProductAffectedFixed
LY Armeria 1.40 – < 1.43.0 1.43.0

References