Spring Security versions 5.5.x prior to 5.5.1, 5.4.x prior to 5.4.7, 5.3.x prior to 5.3.10 and 5.2.x prior to 5.2.11 are susceptible to a Denial-of-Service (DoS) attack via the initiation of the Authorization Request in an OAuth 2.0 Client Web and WebFlux application. A malicious user or attacker can send multiple requests initiating the Authorization Request for the Authorization Code Grant, which has the potential of exhausting system resources using a single session or multiple sessions.
{
"severity": "HIGH",
"github_reviewed": true,
"cwe_ids": [
"CWE-400",
"CWE-863"
],
"github_reviewed_at": "2021-06-30T17:30:10Z",
"nvd_published_at": "2021-06-29T17:15:00Z"
}