CVE-2026-34456: reviactyl panel · Improper Access Control
Affects reviactyl panelSource CVE Database V5
Not known to be exploited · CVSS 9.1 Critical : upgrade to 26.2.0-beta.5 as a priority.
Data as of 30 Oct 2026, 06:59 UTC
Contested
Critical score, yet low EPSS after six months- EPSS
- 0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 26.2.0-beta.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 1 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade reviactyl panel to 26.2.0-beta.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| reviactylpanel | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Reviactyl panel to version 26.2.0-beta.5 or later, where this vulnerability has been patched. No other mitigations are indicated or required as the fix addresses the root cause.
Description
A critical improper access control vulnerability (CWE-284) exists in the Reviactyl panel versions 26.2.0-beta.1 through before 26.2.0-beta.5. The flaw is in the OAuth authentication flow, where social accounts are automatically linked based solely on matching email addresses. An attacker controlling a social account with the victim's email can gain full access to the victim's panel account without needing the victim's password. This leads to a full account takeover without prior authentication.