CVE-2026-124038
Uncontrolled XML entity expansion in the Flock Installer app for Android
An uncontrolled XML entity expansion vulnerability in the Flock Installer app for Android before version 2.35.0 allows an attacker who has a valid technician account and controls or impersonates the camera being set up to crash the app, on devices running Android 10, 11 or 12, by returning a camera configuration response that contains nested XML entity declarations. The vulnerability does not allow the attacker to read or change data on the device, and no customer license plate, video or location data is exposed. Android 13 and later reject the response. The issue is fixed in version 2.35.0; update to 2.35.0 or later.
Fixes and workarounds
Fix
Update the Flock Installer app to version 2.35.0 or later from Google Play. Customers don't need to take any action; the app is used by Flock technicians, whose phones receive the update through Google Play.
Source: CNA: flockAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Flock Installer app Flock Platforms: Android |
≥ 0; < 2.35.0 (affected, custom)
Other versions: unaffected |
CNA: flock |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 1.0 low |
CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | CNA: flock |
| 3.1 / 2.3 low |
CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L | CNA: flock |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://www.flocksafety.com/legal/security-advisoriesCNA: flock · vendor-advisory
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