CVE-2026-121454
Padloc through 4.3.0 Missing SCIM Token Validation via SCIM GET Requests
Description
Padloc through 4.3.0 contains a missing authentication vulnerability in ScimServer._handleScimGet() that allows unauthenticated attackers to read SCIM directories by sending any non-empty bearer token. Attackers who know an organization id can query the Users and Groups SCIM endpoints to retrieve provisioned usernames, emails, names, externalIds, and group memberships.
INFO
Published Date :
Nov. 3, 2026, 4:17 p.m.
Last Modified :
Nov. 3, 2026, 4:30 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-121454
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Padloc to version 4.3.1 or later.
- Review access controls for SCIM endpoints.
- Monitor SCIM logs for unauthorized access.
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-2026-121454.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-121454 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-2026-121454
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-121454 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-121454 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.
-
New CVE Received by [email protected]
Nov. 03, 2026
Action Type Old Value New Value Added Description Padloc through 4.3.0 contains a missing authentication vulnerability in ScimServer._handleScimGet() that allows unauthenticated attackers to read SCIM directories by sending any non-empty bearer token. Attackers who know an organization id can query the Users and Groups SCIM endpoints to retrieve provisioned usernames, emails, names, externalIds, and group memberships. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-306 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/121xxx/CVE-2026-121454.json">CVE-2026-121454</a> Added Reference https://github.com/padloc/padloc Added Reference https://github.com/padloc/padloc/blob/v4.3.0/packages/server/src/scim.ts#L702-L714 Added Reference https://github.com/padloc/padloc/commit/90dda7c6f417b28bee86ec60eff532eb18870125 Added Reference https://github.com/padloc/padloc/issues/795 Added Reference https://www.vulncheck.com/advisories/padloc-through-4.3.0-missing-scim-token-validation-via-scim-get-requests