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CVE-2025-58186
Published: Oct 29, 2025
Modified: Nov 4, 2025
PUBLISHED
Description
Despite HTTP headers having a default limit of 1MB, the number of cookies that can be parsed does not have a limit. By sending a lot of very small cookies such as "a=;", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption.
| Vendor | Product | Versions |
|---|---|---|
Go standard library | net/http | affected 0 - < 1.24.8affected 1.25.0 - < 1.25.2 |
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