What is CVE-2026-31886?

CVE-2026-31886 is a critical-severity vulnerability in Dagu-org Dagu, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-03-13.

How severe is CVE-2026-31886?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Path Traversal in Dagu-org Dagu

CVE-2026-31886

Dagu is a workflow engine with a built-in Web user interface. Prior to 2.2.4, the dagRunId request field accepted by the inline DAG execution endpoints is passed directly into filepath.Join to construct a temporary directory path without a…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (18.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H.

Affected products

Dagu-org Dagu — versions < 2.2.4

Weakness classification (CWE)

CWE-22 — Path Traversal

References

https://github.com/dagu-org/dagu/security/advisories/GHSA-m4q3-457p-hh2x (x_refsource_CONFIRM)
https://github.com/dagu-org/dagu/commit/12c2e5395bd9331d49ca103593edfd0db39c4f38 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-31886?: CVE-2026-31886 is a critical-severity vulnerability in Dagu-org Dagu, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-03-13.
How severe is CVE-2026-31886?: Critical severity. CVSS v3 base score is 9.1 out of 10.