What’s Vulnerable › Vulnerabilities
CVE-2026-8367: aria2c Improper Certificate Validation
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-05-13 · updated 2026-10-26
- Weakness: CWE-295
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.
Affected products
- aria2_project aria2c: before 1.37.0 — fixed in 1.37.0
How to fix
Upgrade to a fixed version: aria2_project aria2c 1.37.0. Check the vendor advisory for mitigations.
References
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