CyberSecBulletin

Fission vulnerabilities

We track 13 vulnerabilities in Fission products. 13 are rated high or critical, and none are known to be exploited. The most recent was published on June 10, 2026.

13vulnerabilities
5critical
8high
0exploited
8.8average CVSS score

Latest Fission vulnerabilities

  • 8.5 High severity

    fission: Improper Privilege Management

    CVE-2026-50570Fission

    Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, Fission added PodSpec safety validation for tenant-facing Environment and Function CRDs (Vali

  • 7.7 High severity

    fission: Improper Limitation of a Pathname to a Restricted Directory

    CVE-2026-50567Fission

    Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, Unarchive in pkg/utils/zip.go joined each archive entry name with the destination directory v

  • 9.9 Critical severity

    fission: Execution with Unnecessary Privileges

    CVE-2026-50566Fission

    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 tenant with environments.fission.io create/update RBAC can run privileged / allowPrivilegeE

  • 9.9 Critical severity

    fission: Improper Privilege Management

    CVE-2026-50564Fission

    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 Environment CRD exposes spec.runtime.podSpec and spec.builder.podSpec, which are me

  • 9.9 Critical severity

    fission: Improper Privilege Management

    CVE-2026-50563Fission

    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 Container Executor path lets a tenant supply Function.spec.podspec directly; the ex

  • 9.9 Critical severity

    fission: Improper Privilege Management

    CVE-2026-50545Fission

    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, the Environment.spec.runtime.podSpec / spec.builder.podSpec passthrough lacked validation, an

  • 8.5 High severity

    fission: Improper Access Control

    CVE-2026-49824Fission

    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, the Fission Function admission webhook (pkg/webhook/function.go) validated that spec.secrets[

  • 7.7 High severity

    fission: Improper Access Control

    CVE-2026-49823Fission

    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 f

  • 7.7 High severity

    fission: Improper Access Control

    CVE-2026-49822Fission

    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 low-privilege developer who could create a KubernetesWatchTrigger (KWT) in their own namesp

  • 7.7 High severity

    fission: Unintended Proxy or Intermediary

    CVE-2026-49821Fission

    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.en

  • 8.7 High severity

    fission: Execution with Unnecessary Privileges

    CVE-2026-46617Fission

    Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.23.0, Fission runtime pods were created with ServiceAccountName: fission-fetcher, and the fission-f

  • 9.8 Critical severity

    fission: Improper Access Control

    CVE-2026-46614Fission

    Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.23.0, the Fission router registers an internal-style route — /fission-function/<name> and /fission-

  • 8.8 High severity

    fission: Missing Authentication for Critical Functionality

    CVE-2026-46612Fission

    Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.23.0, the Fission storagesvc component registers archive CRUD handlers (/v1/archive GET / POST / DE