In Django 3.2 before 3.2.17, 4.0 before 4.0.9, and 4.1 before 4.1.6, the parsed values of Accept-Language headers are cached in order to avoid repetitive parsing. This leads to a potential denial-of-service vector via excessive memory usage if the raw value of Accept-Language headers is very large.
{ "nvd_published_at": "2023-02-01T19:15:00Z", "cwe_ids": [ "CWE-400", "CWE-770" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2023-02-03T21:07:17Z" }