CVE-2026-8367— aria2c Improper Certificate Validation
Possible ATT&CK Techniques 1AI
T1557 · Adversary-in-the-MiddleAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| aria2_project | aria2c | ≤ 1.37.0 | affected |
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I. Basic Information for CVE-2026-8367
Vulnerability Information
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Vulnerability Title
aria2c Improper Certificate Validation
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
aria2c 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
aria2c是aria2开源的一个轻量级多协议命令行下载工具。 aria2c存在信任管理问题漏洞，该漏洞源于接受具有不正确扩展密钥用途的服务器证书，可能导致攻击者重用为不同目的颁发的证书进行TLS服务器身份验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| aria2_project | aria2c | 0 ~ 1.37.0 | - |
II. Public POCs for CVE-2026-8367
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-295
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Elixir WebRTC: Missing DTLS peer fingerprint validation in e - CVE-2026-23998
Fleet has a Windows MDM management endpoint authentication b - CVE-2026-32992
cPanel 信任管理问题漏洞 - CVE-2026-44363
Unsafe remote resource fetching in expansion misp-modules - CVE-2026-0248
Prisma Access Agent: Improper Certificate Validation Vulnera
V. Comments for CVE-2026-8367
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