CVE-2026-94455
Unauthenticated /enterprise/create-user mints lifetime top-tier organizations and discloses their API key
Description
An HTTP endpoint intended for provisioning enterprise and reseller organisations is reachable without any session. The authentication middleware is bound only to an explicit list of controllers, and the enterprise controller is not on that list, so no authentication runs for these routes. The endpoint's only check is that the request body carries a token bearing a valid signature from the instance secret. It does not check what that token was issued for. Login tokens are signed with the same secret and carry no purpose, audience or expiry claim, so an ordinary user's own session token satisfies the check. Presented with such a token, the endpoint creates a new organisation holding the highest subscription tier, flagged as lifetime and with a channel allowance far above any sold plan, creates an organisation-owner account alongside it, and returns the new organisation's API key in the response body. That key is immediately valid against the public API.
INFO
Published Date :
Sept. 22, 2026, 5:17 p.m.
Last Modified :
Sept. 22, 2026, 7:37 p.m.
Remotely Exploit :
No
Source :
4cdc9741-f887-419a-a2fd-acbbd2729276
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 4cdc9741-f887-419a-a2fd-acbbd2729276 |
Solution
- Apply authentication middleware to all relevant controllers.
- Validate token purpose, audience, and expiry claims.
- Restrict organisation provisioning to authorized administrators.
- Review and secure all cryptographic secrets.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-94455.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-94455 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-94455
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-94455 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-94455 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 22, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-94455', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-22T18:13:58.426768Z'} -
New CVE Received by 4cdc9741-f887-419a-a2fd-acbbd2729276
Sep. 22, 2026
Action Type Old Value New Value Added Description An HTTP endpoint intended for provisioning enterprise and reseller organisations is reachable without any session. The authentication middleware is bound only to an explicit list of controllers, and the enterprise controller is not on that list, so no authentication runs for these routes. The endpoint's only check is that the request body carries a token bearing a valid signature from the instance secret. It does not check what that token was issued for. Login tokens are signed with the same secret and carry no purpose, audience or expiry claim, so an ordinary user's own session token satisfies the check. Presented with such a token, the endpoint creates a new organisation holding the highest subscription tier, flagged as lifetime and with a channel allowance far above any sold plan, creates an organisation-owner account alongside it, and returns the new organisation's API key in the response body. That key is immediately valid against the public API. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Added CWE CWE-345 Added CWE CWE-306 Added CWE CWE-770 Added CWE CWE-1390 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/94xxx/CVE-2026-94455.json">CVE-2026-94455</a> Added Reference https://gadvisory.org/advisories/PSA-2026-P8W1J0 Added Reference https://github.com/gitroomhq/postiz-app Added Reference https://github.com/gitroomhq/postiz-app/commit/9259cf2429e8cc0c88414e88d5e6c783d7ffba63 Added Reference https://github.com/gitroomhq/postiz-app/releases/tag/v2.24.0