{"affected":[{"defaultStatus":"unaffected","product":"Armeria","source":"CNA: LY-Corporation","vendor":"LY Corporation","versions":[{"lessThan":"1.43.0","status":"affected","version":"0.84.0","versionType":"custom"}]}],"cveId":"CVE-2026-121821","cwes":["CWE-942"],"description":"A vulnerability has been identified in armeria versions 0.84.0 through 1.42.0, where any-origin CORS policies do not enforce configured path restrictions, allowing an attacker-controlled website visited by an authenticated victim to read sensitive responses from excluded paths when credentials are enabled and the victim's browser sends authentication credentials.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: LY-Corporation","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"}],"modifiedAt":1793951210787,"publishedAt":1793951210787,"references":[{"source":"CNA: LY-Corporation","tags":[],"url":"https://line.github.io/security-advisory-blog/CVE-2026-121821/"},{"source":"CNA: LY-Corporation","tags":[],"url":"https://github.com/line/armeria/security/advisories/GHSA-386q-mrg6-jfj8"}],"remediation":[],"revision":"67a4b1fa45485560603e41e5ec9b32f0d98d275be24ca11fec2bbdc104e1ba2d","sources":[{"modifiedAt":1793951210787,"name":"CNA: LY-Corporation","retrievedAt":1793952539062,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121821"}],"ssvc":null,"status":"published","title":"CVE-2026-121821","updatedAt":1793952539062}