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Fleet EUVDEUVD-2026-87978

| CVE-2026-101047 MEDIUM
Missing Authorization (CWE-862)
2026-09-27 VulnCheck GHSA-jqp5-cmc9-xwxg
Authentication Bypass Apple Fleet Go Fleetdm
6.9
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.3 MEDIUM

Unauthenticated network access with low complexity (PR:N/AC:L/AV:N), but impact is limited to read-only disclosure of app binaries/metadata, so C:L and I:N/A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

5
Metadata Corrected
Sep 27, 2026 - 18:40 vuln.today
tag: Go added
Metadata Corrected
Sep 27, 2026 - 18:40 vuln.today
tag: Privilege Escalation removed
Analysis Generated
Sep 27, 2026 - 18:04 vuln.today
Patch available
Sep 27, 2026 - 18:01 EUVD
CVE Published
Sep 27, 2026 - 17:02 cve.org
MEDIUM 6.9

DescriptionCVE.org

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 (bundle identifier, version, and name) 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 (it returns fleet.ErrMissingLicense).

AnalysisAI

Unauthenticated download of in-house iOS application packages and manifests is possible against enterprise-tier Fleet deployments running versions before 4.87.0, because two sessionless MDM endpoints were shipped without the intended random, time-limited URL token, letting anyone with network reach to the Fleet server fetch IPA binaries and their metadata (bundle identifier, version, name) by guessing sequential title identifiers. Impact is confined to read-only information disclosure - there is no privilege escalation or write access, the free tier is unaffected (it returns fleet.ErrMissingLicense), and hosts not managed by Fleet are untouched. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Requires an enterprise-tier Fleet deployment (free tier returns fleet.ErrMissingLicense and is not vulnerable) running a version before 4.87.0, with in-house iOS applications distributed through Fleet's MDM. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The vendor CVSS 4.0 score of 6.9 (MEDIUM) overstates the practical urgency for most defenders. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: 4.87.0 - upgrade Fleet to 4.87.0 or later, which restores the intended random, time-limited URL token on the in-house iOS app package and manifest endpoints (see the GHSA advisory at https://github.com/fleetdm/fleet/security/advisories/GHSA-q9c5-pp7m-fm2g). … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-87978 vulnerability details – vuln.today
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