CVE-2026-33344CWE-22

Dagu has an incomplete fix for CVE-2026-27598: path traversal via %2F-encoded slashes in locateDAG

High · published March 24, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
44.2
In the wild
Unconfirmed
What it 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 record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00533 · 44.2th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-03-24T19:23Z
EPSS history
Timeline
  • 24 MAR 19:23Z
    Dagu has an incomplete fix for CVE-2026-27598: path traversal via %2F-encoded slashes in locateDAG
    cvelistv5