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Mira Hormone Monitor, Mira Android App

CRITICAL
CVSS 9.8
Date 2026-08-11T06:00:00+00:00
Source cisa-csaf
Published by CISA

// Description

Successful exploitation of these vulnerabilities could allow an attacker to access unauthorized health profile information, make changes to health information, cause a denial-of-service condition, disclose session token information, and obtain control of user accounts.

// Vulnerabilities (8)

CVE ID CVSS Score Severity Description
CVE-2026-68067 9.8 critical
The login endpoint on the Mira cloud API accepts any format-valid string in the password field and returns a live active session token for the account matching the supplied email address. An attacker could use an email address to control cloud accounts and access hormone record information and account settings.
CVE-2026-67558 7.4 high
The Mira Android companion app v4.5.15.4 identifies the paired Mira hormone analyzer by performing a substring match against the BLE advertisement name only, with no cryptographic peripheral authentication, MAC allowlist, or bonded-identity check. An attacker could capture live session token information and inject forged hormone measurements into the victim's cloud record and clinical trend view.
CVE-2026-64934 4.3 medium
The Mira cloud API accepts the firmware version reported by the companion app as authoritative for a given device, without independently attesting the version from the device itself. An authenticated attacker could submit arbitrary firmware version strings for their own device, allowing them to evade vendor-side vulnerable-fleet analytics, suppress security update prompts to the user, and misrepresent patch-adoption metrics.
CVE-2026-67568 9.1 critical
The distributed Mira Android APK v4.5.15.4 allows an attacker read/write access to reproductive health profiles from internet connected hosts, which could result in forgery, deletion, or destruction of health information.
CVE-2026-66832 6.5 medium
When the Mira Android app opens in-app WebView content (e.g., shop redirect flows), the user's live session token is appended to the URL as a query string parameter, and a persistent user identifier is included in the WebView's User-Agent header. Both are then transmitted to third-party web properties, referrer logs, and any JavaScript running in the WebView context.
CVE-2026-66875 8.8 high
In the Mira hormone monitor device firmware v1.7.1.47 build 01070147, a remote unauthenticated attacker within BLE range (approximately 10–30 meters) can silently rebind the device to an attacker-controlled account, extract stored hormone measurements in cleartext, cause a denial-of-service via malformed or undocumented command opcodes, and passively track the user via a static random BLE address that never rotates.
CVE-2026-66340 5.3 medium
The Mira cloud authentication endpoints do not enforce per-account rate limiting, per-IP throttling, or account lockout after repeated failed login attempts. An attacker can use brute-force methods to obtain gain access to user accounts.
CVE-2026-66098 6.5 medium
The Mira hormone monitor device firmware accepts a 0x01 write from any BLE central without authentication, causing the device to reboot into bootloader mode. An attacker could cause a denial-of-service condition or disrupt ovulation tracking and fertility monitoring workflow.

// Remediations (1)

Mitigation: Users should update the Mira app to the latest version iOS v3.5.18 / Android v4.5.18. Firmware v01.0
Users should update the Mira app to the latest version iOS v3.5.18 / Android v4.5.18. Firmware v01.07.01.53 is updated via the app when the device is connected. No additional action is required.

// References