Description
PaperCut NG/MF contains an observable timing discrepancy in its authentication component. An unauthenticated remote attacker can exploit this vulnerability to perform username enumeration by measuring response times during login attempts. The system executes a password hash comparison only when a valid account is supplied, creating a measurable timing oracle that reveals account existence.
Published: 2026-08-03
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 03 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 03 Aug 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Papercut
Papercut papercut Mf
Vendors & Products Papercut
Papercut papercut Mf

Mon, 03 Aug 2026 08:00:00 +0000

Type Values Removed Values Added
Description PaperCut NG/MF contains an observable timing discrepancy in its authentication component. An unauthenticated remote attacker can exploit this vulnerability to perform username enumeration by measuring response times during login attempts. The system executes a password hash comparison only when a valid account is supplied, creating a measurable timing oracle that reveals account existence.
Title PaperCut NG/MF: User enumeration via timing attack
Weaknesses CWE-208
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N'}


Subscriptions

Papercut Papercut Mf
cve-icon MITRE

Status: PUBLISHED

Assigner: PaperCut

Published:

Updated: 2026-08-03T14:30:36.904Z

Reserved: 2026-05-17T23:10:23.139Z

Link: CVE-2026-8794

cve-icon Vulnrichment

Updated: 2026-08-03T14:30:12.556Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T15:00:15Z

Weaknesses