CVE-2026-49823 — Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook
Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a Fission …
Published: 2026-06-10 · CVSS: 7.7 · CVSS 3.1
Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a Fission Function spec carries three reference types — Secret, ConfigMap, and Package. The first two were namespace-validated by the admission webhook; PackageRef.Namespace was not. This issue has been patched in version 1.24.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7