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MEDIUM · 4.8

CVE-2026-8367

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 abl...

Vulnerability 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.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
Aria2 ProjectAria2< 1.37.0

Related Weaknesses (CWE)

CWE-295

References

FAQ

What is CVE-2026-8367?

CVE-2026-8367 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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 abl...

How severe is CVE-2026-8367?

CVE-2026-8367 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-8367?

Check the references section above for vendor advisories and patch information. Affected products include: Aria2 Project Aria2.