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.
Beskrivelsen gjengis slik kilden har publisert den, på engelsk.
Nøkkelfakta
Publisert
2026-08-28
Sist endret
2026-09-14
Tildelt av
eb41dac7-0af8-4f84-9f6d-0272772514f4
CVSS-vektor
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Scoret av
nvd@nist.gov (NVD Primary)
Rettelse finnes
Ja, se referansene
Aktivt utnyttet
CISA førte denne sårbarheten inn i katalogen over kjente utnyttede
sårbarheter 2026-08-31,
med utbedringsfrist 2026-09-14 for amerikanske føderale etater.
Pålagt tiltak: 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.
The product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code.
