PT-2026-48511 · Fission · Fission
CVE-2026-50566
·
Published
2026-06-10
·
Updated
2026-07-30
CVSS v3.1
9.9
Critical
| Vector | AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Fission versions prior to 1.24.0
Description
An issue exists in the Kubernetes-native serverless framework where a tenant with
environments.fission.io create/update RBAC permissions can deploy containers with privileged access, allowPrivilegeEscalation, or dangerous capabilities within the Fission function or builder namespace. These containers are scheduled under the executor's high-privilege service account, which can lead to a container-sandbox escape, providing unauthorized access to the host filesystem and network, and potentially resulting in the compromise of the node and the entire cluster.Recommendations
Update to version 1.24.0.
Exploit
Fix
Improper Privilege Management
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Related Identifiers
Affected Products
Fission