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 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.

Affected

dagu-org · dagu

CVSS v3.1 GITHUB

8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS

0.51% chance of exploitation in the next 30 days, 43rd percentile

Published

2026-03-24

Proof-of-concept exploits (1)

• advisories/GHSA-ph8x-4jfv-v9v8

Security advisories

• dagu-org/dagu/security/advisories/GHSA-ph8x-4jfv-v9v8
• dagu-org/dagu/commit/7d07fda8f9de3ae73dfb081ccd0639f8059c56bb

References

• CVE Record
• NVD entry