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CVE-2026-34456 - Vulnerability Analysis

CriticalCVSS: 9.1

Last Updated: April 1, 2026

Reviactyl - Authentication Bypass

Published: April 1, 2026Updated: April 1, 2026Remote Exploitable

Overview

Reviactyl 26.2.0-beta.1 to < 26.2.0-beta.5 contains an authentication bypass caused by automatic social account linking based on email matching, letting attackers take over accounts without prior authentication.

Severity & Score

Severity: Critical

CVSS Score: 9.1

Impact

Attackers can fully take over user accounts without knowing passwords, leading to complete account compromise.

Mitigation

Upgrade to version 26.2.0-beta.5 or later.

References

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

Related Resources

Vulnerability Intelligence Dashboard
Credential Scanner

Details

CVE ID: CVE-2026-34456
Severity: Critical
CVSS Score: 9.1
Type: broken_authentication
Status: new

CWE

CWE-284

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N