CVE-2026-18825
Origin validation error in the connect-xcors npm package
Description
An Origin Validation Error in the middleware of the connect-xcors npm package allows an attacker to bypass origin verification and perform a cross domain authenticated request.
INFO
Published Date :
Sept. 28, 2026, 1:17 p.m.
Last Modified :
Sept. 28, 2026, 2:17 p.m.
Remotely Exploit :
Yes !
Source :
64c5ae8f-7972-4697-86a0-7ada793ac795
Affected Products
The following products are affected by CVE-2026-18825
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 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | 64c5ae8f-7972-4697-86a0-7ada793ac795 | ||||
| CVSS 4.0 | MEDIUM | 64c5ae8f-7972-4697-86a0-7ada793ac795 |
Solution
- Update the connect-xcors npm package to the latest version.
- Verify middleware origin validation configuration.
- Test for successful cross-domain authenticated requests.
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-2026-18825.
| URL | Resource |
|---|---|
| https://cds.thalesgroup.com/en/tcs-cert/CVE-2026-18825 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18825 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-2026-18825
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-2026-18825 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18825 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.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 28, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-18825', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-28T13:02:07.195221Z'} -
New CVE Received by 64c5ae8f-7972-4697-86a0-7ada793ac795
Sep. 28, 2026
Action Type Old Value New Value Added Description An Origin Validation Error in the middleware of the connect-xcors npm package allows an attacker to bypass origin verification and perform a cross domain authenticated request. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/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 CWE CWE-346 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/18xxx/CVE-2026-18825.json">CVE-2026-18825</a> Added Reference https://cds.thalesgroup.com/en/tcs-cert/CVE-2026-18825