Critical 9.1Published Apr 1, 2026

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

Updated under an hour ago (Oct 27, 2026, 9:10 PM ET)

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It affects reviactyl panel and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for reviactyl panel

Exploited in the last 30 days

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.

CVSS: 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Apr 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

reviactyl panel reviactyl:panel (from the name)	from 26.2.0-beta.1, < 26.2.0-beta.5	CNA record
reviactyl reviactyl reviactyl:reviactyl	26.2.0; 26.2.0; 26.2.0; 26.2.0	NVD

References

References

https://github.com/reviactyl/panel/security/advisories/GHSA-8mcf-rp68-xhfg	x-refsource-confirm, mitigation, patch, vendor-advisory
https://github.com/reviactyl/panel/commit/fe0c29fc62fefe354c9ab8936dfe30fdb586a896	x-refsource-misc, patch
https://github.com/reviactyl/panel/releases/tag/v26.2.0-beta.5	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.