CVE-2026-49821 — Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration
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, Fission's …
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, Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched Package.metadata.namespace. This issue has been patched in version 1.24.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7