In Spring Framework versions 5.3.0 - 5.3.38 and older unsupported versions, it is possible for a user to provide a specially crafted Spring Expression Language (SpEL) expression that may cause a denial of service (DoS) condition. Older, unsupported versions are also affected.
Specifically, an application is vulnerable when the following is true:
{
    "github_reviewed_at": "2024-08-20T20:03:25Z",
    "severity": "MODERATE",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-770"
    ],
    "nvd_published_at": "2024-08-20T08:15:05Z"
}