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    CVE-2026-8794

    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:Aug 3, 2026
    Last Modified:Aug 3, 2026
    EPS:Aug 3, 2026
    EPSS Score:0.00676
    CVSS Score:6.9

    Affected Products

    Vendor
    Papercut
    Product
    Papercut Mf

    Exploits

    https://github.com/H4zaz/CVE-2026-8794

    Common Weakness Enumeration

    CWE-208 Observable Timing Discrepancy

    Related CVEs

    CVE-2026-82078 (CVSS 9.4) — An unsafe dynamic class loading vulnerability exists in the database connection utilities of PaperCut MF and P…
    CVE-2026-81578 (CVSS 8.8) — An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG…
    CVE-2026-8793 (CVSS 6.9) — PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An una…
    CVE-2026-6418 (CVSS 4.6) — An issue was discovered in the Shared Account Synchronization component of PaperCut MF (version 25.0.4). The a…
    CVE-2026-6180 (CVSS 4.1) — A race condition exists in PaperCut MF when processing badge-swipe data from certain HP multifunction devices.…
    CVE-2026-5115 (CVSS 3.6) — The PaperCut NG/MF (specifically, the embedded application for Konica Minolta devices) is vulnerable to sessio…
    CVE-2026-4794 (CVSS 2.1) — Multiple cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF before 25.0.10 allow authenticated admin…
    CVE-2024-9672 (CVSS 6.3) — A reflected cross-site scripting (XSS) vulnerability exists in PaperCut NG/MF. This issue can be used to execu…
    CVE-2024-8404 (CVSS 7.8) — An arbitrary file deletion vulnerability exists in PaperCut NG/MF, specifically affecting Windows servers with…
    CVE-2024-8405 (CVSS 6.1) — An arbitrary file creation vulnerability exists in PaperCut NG/MF that only affects Windows servers with Web P…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High