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CVE-2026-87739

PaperCut MF/NG: User permissions are not evaluated on report generation

MEDIUM
6.9
CVSS Score
Published: September 24, 2026 at 06:46 AM UTC
Updated: October 13, 2026 at 04:17 AM UTC
1 product affected across 1 vendorPapercut Ng

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Papercut Ng· Papercut
90%
025.0.026.0.0
Affected range stops below 25.0.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 26.0.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://www.papercut.com/kb/Main/security-bulletin-sep-2026/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMPaperCut
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-639

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