CVE-2021-22119
Resource Exhaustion in Spring Security
7.5
HIGH
CVSS 3.1
EPSS 4.9%
Description
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.
How to fix CVE-2021-22119
To remediate CVE-2021-22119, upgrade the affected package to a fixed version below.
- —upgrade to 5.5.1 or later
- —upgrade to 5.5.1 or later
Is CVE-2021-22119 being exploited?
Low — EPSS is 4.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 5.5.0, < 5.5.1
- >= 5.5.0, < 5.5.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |