CVE-2026-82044Network attack vectorHinoki check available

Authenticated internal-data disclosure via unvalidated PDF URL

Published Oct 2, 2026 · Updated Oct 2, 2026

Server-side request forgery in UTMStack before 11.2.16 allows remote authenticated users to read internal data through PDF reports. PdfService.downloadPdf() passes the unvalidated url parameter from GET /api/generate-pdf-report to the web-pdf service, which fetches the target and renders its response into a returned PDF. Exploitation requires an authenticated account; the data exposed depends on which internal backends, OpenSearch resources, or instance-metadata endpoints the service can reach.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Server-side request forgery in UTMStack before 11.2.16 allows remote authenticated users to read internal data through PDF reports. PdfService.downloadPdf() passes the unvalidated url parameter from GET /api/generate-pdf-report to the web-pdf service, which fetches the target and renders its response into a returned PDF. Exploitation requires an authenticated account; the data exposed depends on which internal backends, OpenSearch resources, or instance-metadata endpoints the service can reach.

The record

CVE
CVE-2026-82044
Published
Oct 2, 2026
Updated
Oct 2, 2026
Vendor
UTMStack
Product
UTMStack
Classifications
T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <11.2.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

UTMStack · UTMStackversion=0 <11.2.16

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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