CVE-2026-44300

OpenCost provides cost monitoring for Kubernetes workloads and cloud costs. Prior to 1.121.0, the POST /serviceKey endpoint in pkg/costmodel/router.go allows a network client to invoke AddServiceKey without mandatory authentication and submit an arbitrary key form value that is written to the GCP...

CVE-2026-44300

OpenCost provides cost monitoring for Kubernetes workloads and cloud costs. Prior to 1.121.0, the POST /serviceKey endpoint in pkg/costmodel/router.go allows a network client to invoke AddServiceKey without mandatory authentication and submit an arbitrary key form value that is written to the GCP...

EUVD-2026-78874

OpenCost provides cost monitoring for Kubernetes workloads and cloud costs. Prior to 1.121.0, the POST /serviceKey endpoint in pkg/costmodel/router.go allows a network client to invoke AddServiceKey without mandatory authentication and submit an arbitrary key form value that is written to the GCP...

GO-2026-5974 OpenCost ServiceKey Endpoint Unauthorized Credential Overwrite/Injection in github.com/opencost/opencost

OpenCost ServiceKey Endpoint Unauthorized Credential Overwrite/Injection in github.com/opencost/opencost...

OpenCost ServiceKey Endpoint Unauthorized Credential Overwrite/Injection

Summary OpenCost contains an unauthenticated file write vulnerability in the /serviceKey endpoint that allows remote attackers to overwrite the GCP service account key file without authentication. This can lead to service disruption, credential theft, and potential privilege escalation within...