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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/rs/cors/issues/170
https://github.com/rs/cors/pull/171
https://pkg.go.dev/vuln/GO-2024-2883

Configurations

No configuration.

History

No history.

Information

Published : 2025-08-06 21:15

Updated : 2026-06-17 09:28

NVD link : CVE-2025-47908

Mitre link : CVE-2025-47908

CVE.ORG link : CVE-2025-47908

JSON object : View

Products Affected

No product.

CWE

No CWE.

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