CVE-2026-81578
PaperCut MF/NG: Authentication Bypass
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-305 |
| Vendor | papercut |
| Product | papercut mf/ng |
| Published | Aug 28, 2026 |
| Last Updated | Sep 13, 2026 |
⚠️ Actively Exploited — Act Now
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Affected Versions
PaperCut / PaperCut MF/NG
0 < 24.1.10 25.0.0 < 25.0.13 26.0.0 < 26.0.5