CVE-2026-18556 — N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability

Description

N-able N-central contains an authentication bypass using an alternate path or channel that allows for authentication bypass. Required action: 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. (due 2026-08-07).

References

• https://www.cisa.gov/known-exploited-vulnerabilities-catalog