Vulnerability Database

318,389

Total vulnerabilities in the database

CVE-2025-58186

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.

  • Published: Oct 29, 2025
  • Updated: Nov 4, 2025
  • CVE: CVE-2025-58186
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.3
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

No CWE or OWASP classifications available.