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    CVE-2026-83536

    A flaw was found in openstack-network-exporter. The HTTP server within the component is configured without essential timeout settings, such as ReadHeaderTimeout. This vulnerability allows an unauthenticated, remote attacker to initiate multiple slow HTTP header connections. By trickling header bytes, the attacker can exhaust server resources, specifically file descriptors, leading to a Denial of Service (DoS) that prevents legitimate Prometheus metric scraping and alerting.

    Published:Oct 12, 2026
    Last Modified:Oct 28, 2026
    EPS:Oct 12, 2026
    EPSS Score:0.00314
    CVSS Score:5.3

    Affected Products

    Vendor
    Redhat
    Product
    Openstack
    Vendor
    Redhat
    Product
    Openstack Platform

    Exploits

    No exploit reference

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    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