CVE-2026-49823
Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook
- State
- Published
- Severity
- 7.7 High
- Published
- Jun 10, 2026
- Updated
- Jun 10, 2026
- Reserved
- Jun 1, 2026
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 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.7 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
fissionfission |
|
References
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