CVE-2026-82078: listed in the CISA KEV catalog

CVE-2026-82078 · KEV 2026-08-28

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.

Is CVE-2026-82078 exploited?

• Listed in the CISA KEV catalog on 2026-08-28.
• Federal remediation due 2026-09-11.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

• PaperCut · PaperCut MF/NG · >= 0, < 24.1.10, 25.0.13, 26.0.5

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2026-82078

• PaperCut Zero-Days Shift From Access to Theft (2026-09-01)
• PaperCut’s Exploit Chain Splits Into Two CVEs (2026-09-01)

Primary sources

• NVD record
• CISA KEV catalog

What this record does not say

• No CVSS score from NVD.
• No EPSS score.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-09-01.