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Cross-monitor event media authorization bypass in direct event media endpoints

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-54258

Published

ZoneMinder is a free, open source closed-circuit television software application. Versions prior to 1.36.39, 1.38.4, and 1.39.11 allow an authenticated low-privileged user with coarse `Events=View` and/or `Snapshots=View` permissions to directly fetch media for events belonging to monitors they are not allowed to access. The normal UI correctly hides the restricted monitor and its events, but direct event media views accept an arbitrary `eid` and stream media from the event path without enforcing the event/monitor-level ACL. This exposes private surveillance footage across monitor boundaries. Versions 1.36.39, 1.38.4, and 1.39.11 fix the issue.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-54258

Published

zoneminder

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "ZoneMinder",
                    "product": "zoneminder",
                    "versions": [
                        {
                            "version": "< 1.36.39",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.37.0, < 1.38.4",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.39.0, < 1.39.11",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 13 Nov 13:11 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current