CVE-2026-86186— AVideo API Rate Limit Bypass via Bot User-Agent Header
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.
当客户端发送带有“bot”（机器人）User-Agent 请求头的请求时，AVideo 的 API 未强制执行速率限制，使得攻击者能够绕过所有八种受保护操作的速率限制，包括登录暴力破解防护。攻击者可以通过发送带有“bot” User-Agent 头的请求来禁用速率限制，从而从单一 IP 地址对任意账户进行无限制的密码猜测尝试。
Possible ATT&CK Techniques 3 AI
T1110 · Brute Force T1529 · System Shutdown/Reboot T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-86186
Vulnerability Information
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Vulnerability Title
AVideo API Rate Limit Bypass via Bot User-Agent Header
Source: CVE Program / CVE List V5
Vulnerability Description
AVideo API fails to enforce rate limits when clients send a bot User-Agent header, allowing attackers to bypass all eight protected operations including login brute-force protection. Attackers can send requests with a bot User-Agent to disable rate limiting and perform unlimited password guessing attempts against any account from a single IP address.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-86186
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Vendor Advisories for CVE-2026-86186 (2)
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🔗 AVideo API Rate Limit Bypass via Bot User-Agent Header | Advisories | VulnCheck third-party-advisory
Same Patch Batch · WWBN · 2026-09-05 · 5 CVEs total
| CVE-2026-86189 | 9.8 CRITICAL | WWBN AVideo Unauthenticated Path Traversal via notify.ffmpeg.json.php |
| CVE-2026-86190 | 9.1 CRITICAL | WWBN AVideo Broken Access Control via videoViewsInfo hash Parameter |
| CVE-2026-86188 | 7.2 HIGH | AVideo YPTSocket Plugin Unauthenticated Cross-Site Scripting |
| CVE-2026-86187 | 5.9 MEDIUM | WWBN AVideo Weak PRNG Password Generation via External Login |
IV. Related Vulnerabilities
Same product: AVideo
-
CVE-2026-86189
WWBN AVideo Unauthenticated Path Traversal via notify.ffmpeg -
CVE-2026-86190
WWBN AVideo Broken Access Control via videoViewsInfo hash Pa -
CVE-2026-86188
AVideo YPTSocket Plugin Unauthenticated Cross-Site Scripting -
CVE-2026-86187
WWBN AVideo Weak PRNG Password Generation via External Login -
CVE-2026-85577
AVideo userLogin.php Reflected XSS via error parameter
Same vendor: WWBN
-
CVE-2026-86189
WWBN AVideo Unauthenticated Path Traversal via notify.ffmpeg -
CVE-2026-86190
WWBN AVideo Broken Access Control via videoViewsInfo hash Pa -
CVE-2026-86188
AVideo YPTSocket Plugin Unauthenticated Cross-Site Scripting -
CVE-2026-86187
WWBN AVideo Weak PRNG Password Generation via External Login -
CVE-2026-85577
AVideo userLogin.php Reflected XSS via error parameter
Same weakness: CWE-307
-
CVE-2026-85237
Missing Rate Limiting in Email OTP Verification Allows Brute -
CVE-2026-13348
Schneider Electric PowerChute Serial Shutdown 授权问题漏洞 -
CVE-2026-16675
Rockwell Automation FactoryTalk® Activation Manager - Privil -
CVE-2026-82643
WWBN AVideo Unauthenticated Rate Limit Bypass via preauthori -
CVE-2026-82644
WWBN AVideo Brute-force Rate Limiting Bypass via Missing Use
V. Comments for CVE-2026-86186
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