CVE-2026-82078
PaperCut NG/MF Unsafe Reflection Vulnerability
Summary
PaperCut NG/MF contains an unsafe reflection vulnerability that allows an attacker to manipulate system configuration parameters and execute arbitrary Java bytecode residing on the application classpath under the security context of the PaperCut server process. This vulnerability can be chained with CVE-2026-81578.
Affected software
Vendor: PaperCut · Product: NG/MF
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in PaperCut
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2023-27350 | PaperCut MF/NG Improper Access Control Vulnerability | 100.0% | Yes |
| CVE-2023-27351 | PaperCut NG/MF Improper Authentication Vulnerability | 78.1% | Yes |
| CVE-2023-2533 | PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability | 29.2% | Yes |
| CVE-2026-81578 | PaperCut NG/MF Missing Authentication for Critical Function Vulnerability | 1.6% | Yes |
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