CVE-2026-18556
N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-08-04. Federal due date: 2026-08-07.
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Impact
N-able N-central contains an authentication bypass using an alternate path or channel that allows for authentication bypass.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| N-Able | N-Central | Version 0 ≤2026.1 |
| N-Able | N-Central | through 2026.1 |