CVE-2025-47908 – Apache Middleware Denial of Service Vulnerability

The following table lists the changes that have been made to the
CVE-2025-47908 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 06, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added Reference https://github.com/rs/cors/issues/170
    Added Reference https://github.com/rs/cors/pull/171
    Added Reference https://pkg.go.dev/vuln/GO-2024-2883
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