What’s Vulnerable › Vulnerabilities
CVE-2026-87739: PaperCut MF/NG: User permissions are not evaluated on report generation
- Severity: medium (CVSS 6.9 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-24 · updated 2026-10-13
- Weakness: CWE-639
Description
An improper authentication vulnerability in PaperCut MF/NG allows an unauthenticated, remote attacker to trigger report generation. By submitting report generation requests without valid credentials, an attacker can generate reports and gain unauthorized access to sensitive information.
Affected products
- PaperCut NG/MF: before 24.1.10; from 25.0.0 before 25.0.13; from 26.0.0 before 26.0.5 — fixed in 24.1.10, 25.0.13, 26.0.5
How to fix
Upgrade to a fixed version: PaperCut NG/MF 24.1.10, 25.0.13, 26.0.5. Check the vendor advisory for mitigations.
References
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