CVE-2026-33344 json
Dagu has an incomplete fix for CVE-2026-27598: path traversal via %2F-encoded slashes in locateDAG
published 2026-03-19 7 mo ago modified 2026-06-17 4 mo ago also GHSA-ph8x-4jfv-v9v8 , GO-2026-4785 , EUVD-2026-20078
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/dagu-org/dagu 1.30.4-0.20260319093346-7d07fda8f9de
- dagu dagu 2.3.1
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260326T203309-150000.1.155.2
suse advisories SUSE-SU-2026:1135-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/dagu-org/dagu/security/advisories/GHSA-ph8x-4jfv-v9v8 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| GitHub | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/dagu-org/dagu | >=1.30.4-0.20260221021317-e2ed589105d7, <1.30.4-0.20260319093346-7d07fda8f9de |
1.30.4-0.20260319093346-7d07fda8f9de |
Affected products
- dagu-org dagu
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/dagu-org/dagu/commit/7d07fda8f9de3ae73dfb081ccd0639f8059c56bb
web, patch
-
github.com
/dagu-org/dagu/security/advisories/GHSA-ph8x-4jfv-v9v8
web, exploit, mitigation, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-33344
advisory
-
github.com
/dagu-org/dagu
package
Sources
- CVE List CVE-2026-33344
- GitHub Advisory GHSA-ph8x-4jfv-v9v8
- NVD CVE-2026-33344
- OSV GO-2026-4785
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.