---
title: "CVE-2026-94456: Postiz - Authentication Bypass"
description: "Postiz contains a broken authentication caused by use of non-cryptographically secure Math.random() for generating security-sensitive credentials, letting unauthenticated attackers reconstruct PRNG state and compromise OAuth credentials, exploit requires access to OAuth dynamic client registration endpoint."
url: https://panop.io/threat-heartbeat/CVE-2026-94456/
---

# CVE-2026-94456 Postiz - Authentication Bypass

Postiz contains a broken authentication caused by use of non-cryptographically secure Math.random() for generating security-sensitive credentials, letting unauthenticated attackers reconstruct PRNG state and compromise OAuth credentials, exploit requires access to OAuth dynamic client registration endpoint.

CVSS base score 9.1 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.52% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-94456)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

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

Published

22 September 2026

Updated

15 October 2026

Weakness

[CWE-330](https://cwe.mitre.org/data/definitions/330.html)

## Vendor fix

Update to use a cryptographically secure random number generator for credential generation.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-94456](https://nvd.nist.gov/vuln/detail/CVE-2026-94456)
- [https://github.com/gitroomhq/postiz-app/commit/9259cf2429e8cc0c88414e88d5e6c783d7ffba63](https://github.com/gitroomhq/postiz-app/commit/9259cf2429e8cc0c88414e88d5e6c783d7ffba63)
- [https://github.com/gitroomhq/postiz-app/releases/tag/v2.24.0](https://github.com/gitroomhq/postiz-app/releases/tag/v2.24.0)
- [https://gadvisory.org/advisories/PSA-2026-TD98KY](https://gadvisory.org/advisories/PSA-2026-TD98KY)
- [https://github.com/gitroomhq/postiz-app](https://github.com/gitroomhq/postiz-app)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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