CVE-2026-33344 — Dagu has an incomplete fix for CVE-2026-27598: path traversal via %2F-encoded slashes in locateDAG
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 re…
Published: 2026-03-24 · CVSS: 8.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7