CVE-2026-101045
HighCVSS 8.0Exploitation Probability (EPSS)
Elevated risk53th percentile - higher than 53% of all known CVEs
Summary
Fleet-maintained app install and uninstall scripts for macOS are generated from Homebrew cask metadata. In manifests generated before 2026-08-19, the script generator escaped this metadata at some interpolation sites but not all, allowing cask metadata containing shell metacharacters to be carried into scripts that execute as root. An attacker who could land crafted metadata in an upstream Homebrew cask could achieve arbitrary command execution as root on managed macOS hosts.
Risk Assessment
Risk of full compromise of managed macOS hosts by an unauthenticated attacker, potentially leading to data theft, malware installation, or disruption.
Recommendation
Upgrade Fleet to version 4.92.0 or later, which includes the fix. Ensure all manifests generated after 2026-08-19 are in use.
Other vulnerabilities in Fleet
See all- CVE-2026-103265Medium
Fleet versions before 4.89.0 fail to properly filter MDM command results by team authorization in the commands/results endpoint. Team-scoped users can read MDM command results for hosts on other teams when a shared command UUID targets hosts across multiple teams, exposing host UUIDs, command payloads, and device responses.
- CVE-2026-103264Critical
Fleet versions before 4.87.0 contain an authentication bypass vulnerability in the device API that accepts hostnames and hardware serials as authentication tokens in addition to device UUIDs. Unauthenticated attackers who know or guess these non-secret identifiers can authenticate as iOS/iPadOS hosts to read device data and trigger device-scoped actions including software installation and MDM migration.
- CVE-2026-101047Medium
Fleet before 4.87.0 does not protect the two endpoints that serve in-house iOS application packages and manifests (enterprise tier only) with the intended random, time-limited URL token. Because Apple's InstallEnterpriseApplication MDM command requires these URLs to be reachable without a Fleet session, they cannot rely on session-based authentication, and the missing token allows an unauthenticated attacker with network access to the Fleet server to download in-house IPA binaries and their metadata by guessing sequential title identifiers. The impact is limited to read-only disclosure; there is no privilege escalation or write access, and the free tier is unaffected.
- CVE-2026-101046Low
Fleet before 4.89.0 contains an SQL injection vulnerability in the activity list endpoints (GET /api/v1/fleet/activities and GET /api/v1/fleet/hosts/{id}/activities). The deprecated cursor-pagination helper interpolated the sort/order key into the SQL ORDER BY clause without an allowlist, allowing authenticated users with read access to order results by arbitrary columns. Impact is read-only and bounded to columns on the activity_past table not otherwise returned.
- CVE-2026-75036Medium
A security vulnerability was discovered in Fleet's Helm template preprocessing where templates evaluated by the Fleet controller could reach network resources outside the management cluster. A user who can supply bundle content to a repository referenced by a GitRepo resource can cause the Fleet controller to disclose cluster metadata and information about hosts reachable from the controller's network position.
- CVE-2026-54245High
Fleet is an open-source device management platform. In versions prior to 4.86.2, the Okta conditional access integration in Fleet Premium is vulnerable to SQL injection through a host-supplied value used in a database query without proper parameterization, allowing an attacker controlling one enrolled host to read or modify arbitrary data in the Fleet database. By disclosing arbitrary database contents, an attacker can extract stored session tokens and replay them to act as a global administrator, and on a managed fleet that administrator access enables running scripts on enrolled hosts, leading to remote code execution.
- CVE-2026-46371Medium
Fleet up to version 4.84.1 contains a vulnerability in the Apple MDM commands listing endpoint (GET /api/v1/fleet/mdm/apple/commands) that allows an authenticated user with the Observer role to extract sensitive values such as host enrollment secrets and APNs tokens via a sort-order oracle. An attacker can manipulate the order_key parameter and use binary search to reconstruct values character by character. Fixed in version 4.84.2.
- CVE-2026-46370Medium
Fleet up to version 4.84.1 contains a vulnerability in the labels host-listing endpoint (GET /api/v1/fleet/labels/{id}/hosts) that allows an authenticated user with the Observer role to extract host enrollment secrets via a sort-order oracle. An attacker can manipulate the order_key parameter and reconstruct node_key or orbit_node_key, enabling host impersonation. Fixed in version 4.84.2.
- CVE-2026-48786Medium
Fleet prior to version 4.87.0 contains a vulnerability in the target search endpoint (POST /api/latest/fleet/targets) that returns unmasked team enroll secrets and full team configuration, including credential-bearing agent options, to low-privilege observer-class users. Fixed in version 4.87.0.
- CVE-2026-41262Medium
Fleet prior to version 4.85.0 contains a vulnerability in the global policy read endpoint (GET /api/latest/fleet/policies/{policy_id}) that fails to verify team ownership of the requested policy, allowing an authenticated user with observer-level access on any single team to read the full details of policies belonging to any other team. Fixed in version 4.85.0.
Original NVD description (English source)
Fleet-maintained app install and uninstall scripts for macOS are generated from Homebrew cask metadata. In manifests generated before 2026-08-19, the script generator escaped this metadata at some interpolation sites but not all of them, so cask metadata containing shell metacharacters (for example $(...) command substitution) could be carried into scripts that execute as root on managed macOS hosts. An attacker who could land crafted metadata in an upstream Homebrew cask — without needing any Fleet credentials — could achieve arbitrary command execution as root on managed macOS hosts that install or uninstall the affected Fleet-maintained app; exploitation required the crafted metadata to pass both upstream Homebrew cask review and Fleet's review of the automated ingestion pull request. The fix (fleetdm/fleet#51324) landed in Fleet's ingestion pipeline on 2026-08-19 so that all manifests generated on or after that date escape cask metadata at every interpolation site; because manifests are generated centrally and distributed as pre-built content, remediation applied to all deployments with no customer action, and the code fix is included in Fleet v4.92.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

