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    CVE-2025-47908

    Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.

    Published:Aug 6, 2025
    Last Modified:Apr 15, 2026
    EPS:Aug 6, 2025
    EPSS Score:0.00115
    CVSS Score:7.5

    Affected Products

    Vendor
    Golang
    Product
    Cors

    Exploits

    No exploit reference

    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