Compliance Impact

The vulnerability allows attackers to perform arbitrary file deletion and overwrite outside the intended workspace directory by exploiting path traversal in the Islo provider's workspace path resolution.

Such unauthorized file system access and manipulation could lead to data integrity and availability issues, which may impact compliance with standards like GDPR and HIPAA that require protection of data confidentiality, integrity, and availability.

However, the provided information does not explicitly discuss the direct impact of this vulnerability on compliance with these regulations.

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Executive Summary

CVE-2026-45224 is a path traversal vulnerability in the Crabbox project's Islo provider before version 0.9.0. It occurs because the workspace path resolution does not properly validate paths, allowing attackers to supply absolute or relative paths that escape the intended /workspace directory.

Attackers can craft malicious configuration files (.crabbox.yaml or crabbox.yaml) containing traversal sequences (like "../") that cause the system to delete or overwrite arbitrary files when the sync.delete feature is enabled. This happens because the workspace preparation logic executes commands like rm -rf and mkdir -p on the resolved path without proper validation.

The vulnerability is classified under CWE-22, which relates to improper limitation of a pathname to a restricted directory.

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Impact Analysis

This vulnerability can allow an attacker to delete or overwrite arbitrary files on the system where Crabbox is running, potentially leading to data loss or system instability.

Exploitation requires a user to run Crabbox from a repository containing a malicious configuration file that leverages the path traversal flaw.

If exploited, it could result in unauthorized modification or deletion of sensitive files outside the intended workspace directory, which may compromise system integrity.

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Detection Guidance

Detection of this vulnerability involves checking for malicious .crabbox.yaml or crabbox.yaml files that contain path traversal sequences in the Islo provider's workspace path configuration.

Specifically, you should look for configuration files that specify absolute paths or relative paths that escape the intended /workspace directory.

Since the vulnerability is related to path traversal in configuration files, you can search for suspicious path patterns such as '../' or absolute paths in these files.

• Use commands like `grep -rE 'workdir:.*(/|\.\./)' /path/to/repositories` to find workdir entries with absolute or traversal paths.
• Check for the presence of .crabbox.yaml or crabbox.yaml files containing suspicious path entries.
• Monitor for unexpected file deletions or modifications in directories outside /workspace, especially if sync.delete is enabled.

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Mitigation Strategies

To mitigate this vulnerability, immediately update Crabbox to version 0.9.0 or later, where the Islo provider includes validation to prevent path traversal.

The fix enforces that the workspace path is strictly contained within the /workspace directory by rejecting absolute paths and directory traversal sequences.

Additionally, review and sanitize any existing .crabbox.yaml or crabbox.yaml files to ensure they do not contain absolute or traversal paths in the workdir configuration.

If possible, disable the sync.delete feature until the environment is confirmed safe, as this feature enables the destructive rm -rf operations exploited by this vulnerability.

Implement monitoring to detect unauthorized file deletions or modifications outside the intended workspace.

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