CVE-2026-81578 — PaperCut MF/NG: Authentication Bypass
An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests target…
Published: 2026-08-28 · CVSS: 8.8 · CVSS 4.0
An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7