Fission: SanitizeFilePath lexical HasPrefix bypass permits sibling-directory escape

SanitizeFilePath in pkg/utils/utils.go validated that a path stayed under a safe directory by calling strings.HasPrefixpath, safedir. This is a lexical check, not a directory boundary check: /packages-extra/evil starts with /packages, so it passed. The function did not enforce a path-separator...

CVE-2026-50568 Fission: SanitizeFilePath lexical HasPrefix bypass permits sibling-directory escape

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, SanitizeFilePath in pkg/utils/utils.go validated that a path stayed under a safe directory by calling strings.HasPrefixpath,...

CVE-2026-50568 Fission: SanitizeFilePath lexical HasPrefix bypass permits sibling-directory escape

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, SanitizeFilePath in pkg/utils/utils.go validated that a path stayed under a safe directory by calling strings.HasPrefixpath,...

Fission 安全漏洞

Fission is an open-source function deployment framework based on Kubernetes. Versions of Fission prior to 1.25.0 contain security vulnerabilities. These vulnerabilities stem from the SanitizeFilePath function, which uses string prefix checks instead of directory boundary checks. As a result,...