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CVE-2026-61609— Pterodactyl's shared global rate-limit key on login and 2FA checkpoint enables unauthenticated panel-wide authentication lockout (DoS)

Quick assessment

Affected
pterodactyl panel
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Pterodactyl panel是Pterodactyl团队开源的一个游戏服务器管理面板。 Pterodactyl Panel 1.7.0至1.13.0之前版本存在资源管理错误漏洞，该漏洞源于认证速率限制器配置不当，导致登录和双因素认证端点使用全局限流桶，未认证攻击者可通过每分钟约10次请求耗尽计数器，造成面板范围认证拒绝服务，同时锁定管理员。

CVSS 7.5 · High EPSS 0.74% · P53

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
pterodactyl panel >= 1.7.0, < 1.13.0 affected
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I. Basic Information for CVE-2026-61609

Vulnerability Information
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Vulnerability Title
Pterodactyl's shared global rate-limit key on login and 2FA checkpoint enables unauthenticated panel-wide authentication lockout (DoS)
Source: CVE Program / CVE List V5
Vulnerability Description
Pterodactyl is a free, open-source game server management panel. From 1.7.0 until 1.13.0, the authentication rate limiter defined in RouteServiceProvider::configureRateLimiting() applied a single global bucket to the login and two-factor checkpoint endpoints instead of keying by IP or account: the fall-through Limit::perMinute(10) covering POST /auth/login and POST /auth/login/checkpoint omitted ->by(), so Laravel derived a constant cache key (md5('authentication')) shared by every request. An unauthenticated attacker sending roughly ten requests per minute from a single IP, most cheaply against the checkpoint endpoint (which has no reCAPTCHA), exhausts the shared counter and causes HTTP 429 for every user attempting to log in or complete two-factor authentication, a panel-wide authentication denial of service that also locks out administrators. This issue is fixed in version 1.13.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Pterodactyl Panel 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pterodactyl panel是Pterodactyl团队开源的一个游戏服务器管理面板。 Pterodactyl Panel 1.7.0至1.13.0之前版本存在资源管理错误漏洞，该漏洞源于认证速率限制器配置不当，导致登录和双因素认证端点使用全局限流桶，未认证攻击者可通过每分钟约10次请求耗尽计数器，造成面板范围认证拒绝服务，同时锁定管理员。
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
pterodactyl panel >= 1.7.0, < 1.13.0 -

II. Public POCs for CVE-2026-61609

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 8419 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-61609

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Patches & Fixes for CVE-2026-61609 (1)

Vendor Advisories for CVE-2026-61609 (1)

Vendor Pages for CVE-2026-61609 (1)

IV. Related Vulnerabilities

Same product: panel
Same vendor: pterodactyl
Same weakness: CWE-770

V. Comments for CVE-2026-61609

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