TL;DR 📌

• N-able N-central contains an authentication bypass using an alternate path or channel that allows for authentication bypass.
• Highest CVSS: 7.4 (High).
• Listed in CISA KEV (2026-08-04) — this is being exploited in the wild.
• Check the advisory for fixed releases — remediation detail is in the vendor link below.
• CVEs: CVE-2026-18556.

What it is

CVE-2026-18556 is an authentication bypass in N-able N-central, achieved by reaching the application through an alternate path or channel that skips the normal authentication check. The CVSS vector indicates this is exploitable over the network without authentication or user interaction, though attack complexity is rated high.

TL;DR 📌

• N-able N-central contains an authentication bypass using an alternate path or channel allows for authentication bypass and account takeover in N-central. This vulnerability is the result of an incomplete patch for CVE-2026-18556.
• Highest CVSS: 8.1 (High).
• Listed in CISA KEV (2026-08-03) — this is being exploited in the wild.
• Check the advisory for fixed releases — remediation detail is in the vendor link below.
• CVEs: CVE-2026-18577.

What it is

N-able N-central contains an authentication bypass using an alternate path or channel allows for authentication bypass and account takeover in N-central. This vulnerability is the result of an incomplete patch for CVE-2026-18556.