Description
An unsafe dynamic class loading vulnerability exists in the database connection utilities of PaperCut MF and PaperCut NG. The application instantiates database driver classes based on configurable driver names without validating against an allowlist of approved drivers. If an attacker can manipulate system configuration parameters, this enables the execution of arbitrary Java bytecode residing on the application classpath under the security context of the PaperCut server process.
Published: 2026-08-28
Score: 9.4 Critical
EPSS: < 1% Very Low
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 31 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Papercut
Papercut papercut Mf
Papercut papercut Ng
CPEs cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*
Vendors & Products Papercut
Papercut papercut Mf
Papercut papercut Ng
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}


Mon, 31 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 31 Aug 2026 15:30:00 +0000


Mon, 31 Aug 2026 14:45:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-08-28T00:00:00+00:00', 'dueDate': '2026-09-11T00:00:00+00:00'}


Mon, 31 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 29 Aug 2026 04:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 28 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Description An unsafe dynamic class loading vulnerability exists in the database connection utilities of PaperCut MF and PaperCut NG. The application instantiates database driver classes based on configurable driver names without validating against an allowlist of approved drivers. If an attacker can manipulate system configuration parameters, this enables the execution of arbitrary Java bytecode residing on the application classpath under the security context of the PaperCut server process.
Title PaperCut MF/NG: Unsafe Dynamic Class Loading in Database Connector
Weaknesses CWE-470
References
Metrics cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


Subscriptions

Papercut Papercut Mf Papercut Ng
cve-icon MITRE

Status: PUBLISHED

Assigner: PaperCut

Published:

Updated: 2026-08-31T15:29:15.402Z

Reserved: 2026-08-28T00:13:25.684Z

Link: CVE-2026-82078

cve-icon Vulnrichment

Updated: 2026-08-28T15:43:33.996Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-28T16:18:31.240

Modified: 2026-08-31T18:41:41.897

Link: CVE-2026-82078

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-31T21:24:39Z

Weaknesses