CVE-2021-25735
Validating Admission Webhook does not observe some previous fields
- State
- Published
- Severity
- 6.5 Medium
- Published
- Sep 6, 2021
- Updated
- Sep 16, 2024
- Reserved
- Jan 21, 2021
Description
A security issue was discovered in kube-apiserver that could allow node updates to bypass a Validating Admission Webhook. Clusters are only affected by this vulnerability if they run a Validating Admission Webhook for Nodes that denies admission based at least partially on the old state of the Node object. Validating Admission Webhook does not observe some previous fields.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H | kubernetes |
Weaknesses
- CWE-372 Incomplete Internal State Distinction
Affected Products
| Product | Versions |
|---|---|
KubernetesKubernetes |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.