Summaryinfo

A vulnerability classified as critical has been found in dagu-org dagu up to 2.3.0. Affected by this vulnerability is the function generateFilepath of the component API Endpoint. Performing a manipulation results in path traversal. This vulnerability is cataloged as CVE-2026-33344. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in dagu-org dagu up to 2.3.0. It has been classified as critical. This affects the function generateFilepath of the component API Endpoint. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Dagu is a workflow engine with a built-in Web user interface. From version 2.0.0 to before version 2.3.1, the fix for CVE-2026-27598 added ValidateDAGName to CreateNewDAG and rewrote generateFilePath to use filepath.Base. This patched the CREATE path. The remaining API endpoints - GET, DELETE, RENAME, EXECUTE - all pass the {fileName} URL path parameter to locateDAG without calling ValidateDAGName. %2F-encoded forward slashes in the {fileName} segment traverse outside the DAGs directory. This issue has been patched in version 2.3.1.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-33344 since 03/18/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 2.3.1 eliminates this vulnerability.

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Productinfo

Vendor

• dagu-org

Name

• dagu

Version

• 2.0
• 2.1
• 2.2
• 2.3.0

Website

• Product: https://github.com/dagu-org/dagu/

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CPE 2.2info

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