CVE-2026-18825 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

github.com/antono

connect-cors

unknown

Version	Status	Constraints
`0`	affected	≤ 0.5.6

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://cds.thalesgroup.com/en/tcs-cert/CVE-2026-18825

History

Mon, 28 Sep 2026 13:00:00 +0000

Type	Values Removed	Values 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.
Title		Origin validation error in the connect-xcors npm package
Weaknesses		CWE-346
References		https://cds.thalesgroup.com/en/tcs-cert/CVE-2026-18825
Metrics		cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: TCS-CERT

Published: 2026-09-28T12:32:17.883Z

Updated: 2026-09-28T13:31:27.979Z

Reserved: 2026-08-04T13:34:14.440Z

Link: CVE-2026-18825

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-09-28T13:17:21.680

Modified: 2026-09-28T13:17:21.680

Link: CVE-2026-18825

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-346

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