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CVE-2026-34456— Reviactyl: OAuth account takeover via auto-linking

Quick assessment

Affected
reviactyl 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.

Reviactyl是Reviactyl开源的一个游戏服务器管理面板。 Reviactyl 26.2.0-beta.1至26.2.0-beta.5之前版本存在访问控制错误漏洞，该漏洞源于OAuth身份验证流程中存在漏洞，仅基于匹配的电子邮件地址自动链接社交账户，可能导致攻击者使用受害者的电子邮件地址创建或控制社交账户，在不知道密码的情况下获得对受害者账户的完全访问权限，实现账户接管。

CVSS 9.1 · Critical EPSS 0.69% · P51

Possible ATT&CK Techniques 1 AI

T1110.003 · Password Spraying
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I. Basic Information for CVE-2026-34456

Vulnerability Information
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Vulnerability Title
Reviactyl: OAuth account takeover via auto-linking
Source: CVE Program / CVE List V5
Vulnerability Description
Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email addresses. An attacker could create or control a social account (e.g., Google, GitHub, Discord) using a victim’s email address and gain full access to the victim's account without knowing their password. This results in a full account takeover with no prior authentication required. This issue has been patched in version 26.2.0-beta.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Reviactyl 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Reviactyl是Reviactyl开源的一个游戏服务器管理面板。 Reviactyl 26.2.0-beta.1至26.2.0-beta.5之前版本存在访问控制错误漏洞，该漏洞源于OAuth身份验证流程中存在漏洞，仅基于匹配的电子邮件地址自动链接社交账户，可能导致攻击者使用受害者的电子邮件地址创建或控制社交账户，在不知道密码的情况下获得对受害者账户的完全访问权限，实现账户接管。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
reviactyl panel >= 26.2.0-beta.1, < 26.2.0-beta.5 -

II. Public POCs for CVE-2026-34456

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Qwen3.6-35B-A3B · 9032 chars
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III. Intelligence Information for CVE-2026-34456

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Patches & Fixes for CVE-2026-34456 (1)

IV. Related Vulnerabilities

Same product: panel
Same weakness: CWE-284

V. Comments for CVE-2026-34456

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