Crabbox < 0.9.0 Path Traversal via Islo Provider Workspace Resolution

Crabbox before 0.9.0 contains a path traversal vulnerability in the Islo provider's workspace path resolution that allows attackers to supply absolute or relative paths that resolve outside the intended /workspace directory. Attackers can craft a malicious .crabbox.yaml or crabbox.yaml file with traversal sequences to cause arbitrary file deletion and overwrite when sync.delete is enabled, as the workspace preparation logic executes rm -rf and mkdir -p operations on the resolved path without proper validation.

Source published

11 May 2026 18:12:51 UTC

Source modified

8 Oct 2026 15:22:44 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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CVSS 4.0 · 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1 · 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H