CVE-2026-49822 HIGH

CVE-2026-49822: Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance

Vendor Fission
Product fission
Weakness CWE-284
Published June 10, 2026
Last update June 10, 2026
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

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 namespace was able to establish a persistent surveillance channel over any other namespace. This issue has been patched in version 1.24.0.

Key dates

02Disclosure timeline

June 10, 2026 CVE published
June 10, 2026 Record updated