Coordinator Impersonation in Contrast for Kubernetes by Edgeless Systems
CVE-2025-71426

7.1HIGH

Key Information:

Vendor

Edgelesssys

Status
Contrast
Vendor
CVE Published:
27 September 2026

What is CVE-2025-71426?

The Contrast platform for Kubernetes contains a vulnerability in versions prior to 1.4.1, where a recovering Coordinator does not validate the supplied seed from the recovering party. This flaw allows an attacker to deploy a rogue Coordinator that can manipulate network traffic, impersonating a legitimate workload owner. If the workload owner sets a new manifest without verifying the returned root CA certificate, the attacker can issue deceptive certificates leading back to their rogue Coordinator's root CA. Consequently, workload secrets can be exposed for workloads deployed post-attack, while the secrets of the legitimate Coordinator remain secure.

Affected Version(s)

contrast 0 < 1.4.1

contrast 1.4.1

References

https://github.com/edgelesssys/contrast/security/advisori...
vendor-advisory
https://www.vulncheck.com/advisories/contrast-before-1.4....
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

3u13r
burgerdev
katexochen
.