{"affected":[{"defaultStatus":"unaffected","product":"Armeria","source":"CNA: LY-Corporation","vendor":"LY Corporation","versions":[{"lessThan":"1.43.0","status":"affected","version":"1.40","versionType":"custom"}]}],"cveId":"CVE-2026-121819","cwes":["CWE-59"],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":5.9,"severity":"medium","source":"CNA: LY-Corporation","vector":"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","version":"4.0"}],"modifiedAt":1793951205370,"publishedAt":1793951205370,"references":[{"source":"CNA: LY-Corporation","tags":[],"url":"https://line.github.io/security-advisory-blog/CVE-2026-121819/"},{"source":"CNA: LY-Corporation","tags":[],"url":"https://github.com/line/armeria/security/advisories/GHSA-m64h-m6r5-6jrx"}],"remediation":[],"revision":"64755585c6aaae79106568a4370f780241ef32ccf76125e3bf6976c135e9115e","sources":[{"modifiedAt":1793951205370,"name":"CNA: LY-Corporation","retrievedAt":1793952535150,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121819"}],"ssvc":null,"status":"published","title":"CVE-2026-121819","updatedAt":1793952535150}