CVE-2026-8367

aria2c Improper Certificate Validation

Published May 13, 2026 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:aria2_project:aria2:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Aria2 Project
Aria2 Project aria2
Vendors & Products Aria2 Project
Aria2 Project aria2
Type Values Removed Values Added
Description 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.
Title aria2c Improper Certificate Validation
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
tenable
Published
Updated
May 13, 2026, 6:35 PM
Reserved
May 11, 2026, 8:46 PM
Status
Analyzed
Published
May 13, 2026, 4:17 PM
Modified
Oct 26, 2026, 5:10 PM