Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the windowsMDMManagement endpoint. An attacker can gain unauthorized access to management functionality by bypassing authentication mechanisms. Remediation Upgrade github.com/fleetdm/fleet/server/service to...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the windowsMDMManagement endpoint. An attacker can gain unauthorized access to management functionality by bypassing authentication mechanisms. Remediation Upgrade github.com/fleetdm/fleet/server/fleet to...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the windowsMDMManagement endpoint. An attacker can gain unauthorized access to management functionality by bypassing authentication mechanisms. Remediation Upgrade github.com/fleetdm/fleet/v4/server/mock to...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the windowsMDMManagement endpoint. An attacker can gain unauthorized access to management functionality by bypassing authentication mechanisms. Remediation Upgrade github.com/fleetdm/fleet/v4/server/service t...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the windowsMDMManagement endpoint. An attacker can gain unauthorized access to management functionality by bypassing authentication mechanisms. Remediation Upgrade github.com/fleetdm/fleet/server/mock to...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the windowsMDMManagement endpoint. An attacker can gain unauthorized access to management functionality by bypassing authentication mechanisms. Remediation Upgrade github.com/fleetdm/fleet/v4/server/fleet to...

CVE-2026-24899

Fleet is open source device management software. Prior to version 4.82.0, a vulnerability in Fleet's Windows MDM enrollment flow allows authentication tokens from any Azure AD tenant to be accepted. Because Fleet validates JWT signatures using Microsoft's multi-tenant JWKS endpoint but does not...

CVE-2026-23998

Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet’s Windows MDM management endpoint could allow requests to be processed without proper client certificate validation. In certain circumstances, this could allow an attacker to impersonate an enrolled...

CVE-2026-26191

Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet's software installer pipeline could allow a crafted software package to execute arbitrary commands as root macOS/Linux or SYSTEM Windows on managed endpoints when an uninstall is triggered. When a...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to improper validation of JWT aud and iss claims in the Windows MDM authentication flow. An attacker can enroll unauthorized devices by presenting a valid Microsoft-signed Azure AD token from any tenant. This is...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

Command Injection

Overview Affected versions of this package are vulnerable to Command Injection in the process that generates uninstall scripts from uploaded software packages, due to improper sanitization of metadata fields. An attacker can execute arbitrary commands with elevated privileges on managed endpoints...

Command Injection

Overview Affected versions of this package are vulnerable to Command Injection in the process that generates uninstall scripts from uploaded software packages, due to improper sanitization of metadata fields. An attacker can execute arbitrary commands with elevated privileges on managed endpoints...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

CVE-2026-46356

Fleet is open source device management software. Prior to version 4.80.1, a vulnerability in Fleet's IP extraction logic allows unauthenticated attackers to bypass API rate limiting by spoofing client IP headers. This may allow brute-force login attempts or other abuse against Fleet instances...

CVE-2026-26191

Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet's software installer pipeline could allow a crafted software package to execute arbitrary commands as root macOS/Linux or SYSTEM Windows on managed endpoints when an uninstall is triggered. When a...

CVE-2026-24899

Fleet is open source device management software. Prior to version 4.82.0, a vulnerability in Fleet's Windows MDM enrollment flow allows authentication tokens from any Azure AD tenant to be accepted. Because Fleet validates JWT signatures using Microsoft's multi-tenant JWKS endpoint but does not...

CVE-2026-24000

Fleet is open source device management software. Prior to version 4.80.1, Fleet trusted client-supplied IP address headers when determining the source IP for incoming requests. This allowed authenticated and unauthenticated clients to spoof their apparent IP address and bypass per-IP rate limitin...

CVE-2026-23998

Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet’s Windows MDM management endpoint could allow requests to be processed without proper client certificate validation. In certain circumstances, this could allow an attacker to impersonate an enrolled...