ACTIVELY EXPLOITED
CVE-2026-18556: N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
| Vendor | N-able |
|---|---|
| Product | N-central |
| Actively exploited | Yes |
| Added to CISA KEV | 4 Aug 2026 |
| CISA federal deadline | 7 Aug 2026 |
| Weakness (CWE) | CWE-288 |
Required action (CISA's text)
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.
Description (NVD)
N-able N-central contains an authentication bypass using an alternate path or channel that allows for authentication bypass.
SOURCES
Other N-able flaws
- CVE-2026-86218: N-able N-central Static Code Injection Vulnerability
- CVE-2026-18577: N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
- CVE-2025-8876: N-able N-Central Command Injection Vulnerability
- CVE-2025-8875: N-able N-Central Insecure Deserialization Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.