{"id":"CVE-2026-8367","title":"aria2c accepts a server certificate with incorrect Extended Key Usage (EKU)","summary":"aria2c accepts a server certificate with incorrect Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authenti…","severity":"medium","cvss":4.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-295"],"vendor":"aria2_project","product":"aria2","affected":["aria2 < 1.37.0"],"patched":["aria2 1.37.0"],"published":"2026-05-13","updated":"2026-08-19","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-8367","references":[{"url":"https://www.tenable.com/security/research/tra-2026-38","label":"vulnreport@tenable.com"}],"tags":["nvd"],"epss":0.00127,"epssPercentile":0.0272,"ingestedAt":"2026-08-19T13:39:33.737Z","slug":"CVE-2026-8367","body":"## Overview\n\naria2c accepts a server certificate with incorrect Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.\n\n## Affected\n\n- `aria2 < 1.37.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `aria2 1.37.0`","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":26.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}