Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions are vulnerable to an Algorithmic Denial of Service (DoS). By providing a specially crafted expression, an attacker can trigger excessive resource consumption during evaluation, leading to application degradation or unavailability.
Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
{
"nvd_published_at": "2026-06-09T05:16:37Z",
"severity": "HIGH",
"github_reviewed": true,
"cwe_ids": [
"CWE-407"
],
"github_reviewed_at": "2026-07-30T18:26:06Z"
}