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CVE-2026-64626— AVideo Encoder downloadURL SSRF via unpinned retry fallback

Quick assessment

Affected
WWBN AVideo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WWBN avideo是WWBN组织开源的一套视频内容管理系统。 WWBN AVideo存在服务端请求伪造漏洞，该漏洞源于下载器URL流中的未固定重试回退绕过DNS引脚验证，可能导致经身份验证的攻击者提供指向内部地址的downloadURL，从而盲目服务端请求伪造攻击。

CVSS 6.4 · Medium EPSS 0.32% · P25

Possible ATT&CK Techniques 1 AI

T1113 · Screen Capture

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo 0dbadbcaaa1b415c7db078a72dc4b26d9fac0485 affected
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I. Basic Information for CVE-2026-64626

Vulnerability Information
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Vulnerability Title
AVideo Encoder downloadURL SSRF via unpinned retry fallback
Source: CVE Program / CVE List V5
Vulnerability Description
AVideo versions from commit 0dbadbca through latest master contain a server-side request forgery vulnerability in the encoder download-by-URL flow due to an unpinned retry fallback that bypasses DNS pinning validation. An authenticated attacker can supply a downloadURL that redirects to an internal address, causing the unpinned retry to follow the redirect and reach internal targets for blind SSRF attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
WWBN AVideo 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WWBN avideo是WWBN组织开源的一套视频内容管理系统。 WWBN AVideo存在服务端请求伪造漏洞，该漏洞源于下载器URL流中的未固定重试回退绕过DNS引脚验证，可能导致经身份验证的攻击者提供指向内部地址的downloadURL，从而盲目服务端请求伪造攻击。
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
WWBN AVideo 0dbadbcaaa1b415c7db078a72dc4b26d9fac0485 -

II. Public POCs for CVE-2026-64626

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III. Intelligence Information for CVE-2026-64626

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Patches & Fixes for CVE-2026-64626 (1)

Vendor Advisories for CVE-2026-64626 (2)

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-918

V. Comments for CVE-2026-64626

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