CVE-2026-8367 MEDIUM

CVE-2026-8367: aria2c Improper Certificate Validation

Vendor Aria2_Project
Product aria2c
Weakness CWE-295
Published May 13, 2026
Last update May 13, 2026

CVSS base score

4.8/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

What the vulnerability does

01Description

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 authentication.

Key dates

02Disclosure timeline

May 13, 2026 CVE published
May 13, 2026 Record updated