CVE-2026-34456CRITICAL 9.8EPSS p36.1%

CVE-2026-34456CVE-2026-34456

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.46% probability of exploitation · percentile 36.1% · 2026-06-18T12:00:27Z
Published2026-04-01
Last modified2026-04-15

Underlying weaknesses· 1

CWE-284

References

  1. https://github.com/reviactyl/panel/commit/fe0c29fc62fefe354c9ab8936dfe30fdb586a896
  2. https://github.com/reviactyl/panel/releases/tag/v26.2.0-beta.5
  3. https://github.com/reviactyl/panel/security/advisories/GHSA-8mcf-rp68-xhfg

1

TypeTargetConfidenceTier
WeaknessImproper Access Controlcwe-2840%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.