CVE-2026-50566
9.9 CRITICALFission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes
Published: 2026-06-10 · Last updated: 2026-06-10
Severity and scoring
- CVSS
- 9.9 CRITICAL
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CWE
- CWE-250, CWE-269
Description
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 / allowPrivilegeEscalation / dangerous-capability containers in the Fission function or builder namespace, scheduled under the executor's high-privilege service account — enabling container-sandbox escape, host filesystem and network access, and potential node- and cluster-level compromise. This issue has been patched in version 1.24.0.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-50566
- [Other]https://github.com/fission/fission/pull/3406
- [Other]https://github.com/fission/fission/releases/tag/v1.24.0
- [Other]https://github.com/fission/fission/security/advisories/GHSA-m63v-2g9w-2w6v
- [Other]https://github.com/fission/fission/security/advisories/GHSA-m63v-2g9w-2w6v
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- CVE-2026-50565 — Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes (4.9 MEDIUM)
- CVE-2026-50564 — Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes (9.9 CRITICAL)
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