High 7.7Published Oct 2, 2026

CVE-2026-82044UTMStack < 11.2.16 Server-Side Request Forgery via downloadPdf

Updated under an hour ago (2026-10-19 11:10 UTC)

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It affects UTMStack. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.26%, higher than 16% of scored CVEs.

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Exploited in the last 30 days

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.

CVSS: 7.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.26% (percentile 16)
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

UTMStack UTMStack utmstack:utmstack (from the name)	before 11.2.16	CNA record

References

https://github.com/UTMStack/UTMStack/releases/tag/v11.2.16release-notes
https://github.com/utmstack/UTMStack/commit/4e7a727c3b8d8e2ad020d3b4f982a6d085dbecddpatch
https://www.vulncheck.com/advisories/utmstack-server-side-request-forgery-via-downloadpdfthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.