{"id":"CVE-2026-121821","title":"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…","summary":"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…","severity":"medium","cvss":5.3,"cvssVector":"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","cvssSource":"cna","cwe":["CWE-942"],"vendor":"LY Corporation","product":"Armeria","affected":["Armeria >= 0.84.0 < 1.43.0"],"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T07:46:50.787Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121821","references":[{"url":"https://line.github.io/security-advisory-blog/CVE-2026-121821/"},{"url":"https://github.com/line/armeria/security/advisories/GHSA-386q-mrg6-jfj8"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T08:48:01.716Z","epss":0.00324,"epssPercentile":0.25649,"slug":"CVE-2026-121821","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `Armeria >= 0.84.0 < 1.43.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}