AEGLIX vulnerability intelligence
CVE-2026-82078
CRITICAL · CVSS 9.4 · Analyzed
Published: 2026-08-28 · Updated: 2026-09-14 · Source: NVD
Vulnerability overview
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.
Severity and scoring
- CVSS score
- 9.4 · CRITICAL
- CVSS version
- 4.0
- CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Weaknesses
- CWE-470
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- PaperCut · NG/MF
- Added to catalog
- 2026-08-31
- Required action
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- CISA remediation due date
- 2026-09-14
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
Before (exclusive): 24.1.9
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
From (inclusive): 25.0.2
Before (exclusive): 25.0.12
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
From (inclusive): 26.0.2
Before (exclusive): 26.0.4
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*
Before (exclusive): 24.1.9
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*
From (inclusive): 25.0.2
Before (exclusive): 25.0.12
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*
From (inclusive): 26.0.2
Before (exclusive): 26.0.4
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://www.papercut.com/kb/Main/security-bulletin-27-aug-2026-urgent-security-advisory/
Patch · Vendor Advisory
- https://github.com/rapid7/metasploit-framework/pull/21842
Issue Tracking · Patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-82078
Patch · Third Party Advisory · US Government Resource