GO-2024-2883

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Source

https://pkg.go.dev/vuln/GO-2024-2883

Import Source

https://vuln.go.dev/ID/GO-2024-2883.json

JSON Data

https://api.osv.dev/v1/vulns/GO-2024-2883

Aliases

CVE-2025-47908
GHSA-mh55-gqvf-xfwm

Published

2024-07-02T19:20:36Z

Modified

2025-08-06T20:44:35.836188Z

Summary

Denial of service via malicious preflight requests in github.com/rs/cors

Details

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.

Database specific

{
    "review_status": "REVIEWED",
    "url": "https://pkg.go.dev/vuln/GO-2024-2883"
}

References

Credits

- @jub0bs

Affected packages

Go / github.com/rs/cors

Package

Name: github.com/rs/cors; View open source insights on deps.dev
Purl: pkg:golang/github.com/rs/cors

Affected ranges

Type: SEMVER
Events: Introduced

1.9.0

Fixed

1.11.0

Ecosystem specific

{
    "imports": [
        {
            "symbols": [
                "AllowAll",
                "Cors.HandlerFunc",
                "Cors.ServeHTTP",
                "Cors.areHeadersAllowed",
                "Cors.handlePreflight",
                "Default",
                "New",
                "splitHeaderValues"
            ],
            "path": "github.com/rs/cors"
        }
    ]
}