Security Operations
Threat Intelligence
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CVE-2026-82078 - An unsafe dynamic class loading vulnerability exists in the database connection utilities of PaperCut MF and PaperCut NG

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.
CRITICAL CISA KEV ACTIVELY EXPLOITED
Severity & confidence
Source severityinformational
Platform severitycritical
Confidencehigh
Exploitationactively exploited
CVSS-
Affected
ProductsNG/MF
Reporting sources (2)
NIST NVD - National Vulnerability Database
Open source โ†—
CISA - Known Exploited Vulnerabilities
Open source โ†—
๐ŸŽฏ Why should I care?
  • On the CISA Known Exploited Vulnerabilities list.
  • Credible sources report active exploitation in the wild.
Timeline & provenance
Published2026-08-28T16:18:31
Last updated2026-10-21T04:58:06
Ingested2026-08-30T17:33:45
FreshnessNEAR-REAL-TIME
Threat typevulnerability
Recommended action
No recommended action published with this item - review the original source.
Next steps
  1. Identify affected systems in your environment.
  2. Apply the vendor patch or mitigation guidance.
  3. Review logs for indicators described in the advisory.
  4. Follow the affected vendor/product to track updates.
Confidence explanation
Reported by a government or cert-grade source (CISA, NCSC, NVD, ENISA, MSRC).
Source type: standards ยท Original: NIST NVD - National Vulnerability Database