CVE-2026-82044
UTMStack < 11.2.16 Server-Side Request Forgery via downloadPdf
- State
- Published
- Severity
- 6.3 Medium
- Published
- Oct 2, 2026
- Updated
- Oct 5, 2026
- Reserved
- Aug 27, 2026
Description
UTMStack before 11.2.16 contains a server-side request forgery vulnerability that allows authenticated attackers to make the server request arbitrary internal resources by supplying an unvalidated url parameter to the PdfService.downloadPdf() method exposed via GET /api/generate-pdf-report. Attackers can leverage this to force the web-pdf microservice to fetch internal backend endpoints, the OpenSearch cluster, or the cloud instance-metadata service, exposing sensitive internal data rendered into the returned PDF.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N | VulnCheck |
| 3.1 | 7.7 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
UTMStackUTMStack |
|
References
- UTMStack v11.2.16 Release Notesrelease-notes
- Patch Commitpatch
- https://www.vulncheck.com/advisories/utmstack-server-side-request-forgery-via-downloadpdfthird-party-advisory
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