VULNERABILITY INTELLIGENCE
CVE-2021-25740
CVSS score3.1 LOW
EPSS probability1.95%
CISA KEVNot currently listed
Published2021-09-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Description
A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.
Weakness classification
- CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')
- CWE-610: Externally Controlled Reference to a Resource in Another Sphere
Primary references
- jordan@liggitt.net — Mitigation, Third Party Advisory
- jordan@liggitt.net — Mailing List, Mitigation, Third Party Advisory
- jordan@liggitt.net
- jordan@liggitt.net — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Mitigation, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory