CVE-2026-27598

Dagu is a workflow engine with a built-in Web user interface. In versions up to and including 1.16.7, the `CreateNewDAG` API endpoint (`POST /api/v1/dags`) does not validate the DAG name before passing it to the file store. An authenticated user with DAG write permissions can write arbitrary YAML files anywhere on the filesystem (limited by the process permissions). Since dagu executes DAG files as shell commands, writing a malicious DAG to the DAGs directory of another instance or overwriting config files can lead to remote code execution. Commit e2ed589105d79273e4e6ac8eb31525f765bb3ce4 fixes the issue.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/dagu-org/dagu/commit/e2ed589105d79273e4e6ac8eb31525f765bb3ce4	Patch
https://github.com/dagu-org/dagu/security/advisories/GHSA-6v48-fcq6-ff23	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:dagu:dagu:*:*:*:*:*:*:*:*

History

25 Feb 2026, 20:23

Type	Values Removed	Values Added
First Time		Dagu dagu Dagu
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
References	~~() https://github.com/dagu-org/dagu/commit/e2ed589105d79273e4e6ac8eb31525f765bb3ce4 -~~	() https://github.com/dagu-org/dagu/commit/e2ed589105d79273e4e6ac8eb31525f765bb3ce4 - Patch
References	~~() https://github.com/dagu-org/dagu/security/advisories/GHSA-6v48-fcq6-ff23 -~~	() https://github.com/dagu-org/dagu/security/advisories/GHSA-6v48-fcq6-ff23 - Exploit, Vendor Advisory
CPE		cpe:2.3:a:dagu:dagu::::::::

25 Feb 2026, 01:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-25 01:16

Updated : 2026-02-25 20:23

NVD link : CVE-2026-27598

Mitre link : CVE-2026-27598

CVE.ORG link : CVE-2026-27598

JSON object : View

Products Affected

dagu

dagu

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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