CVE-2026-101047 Fleet before 4.87.0 Unauthenticated iOS App Download via Predictable URLs
Unauthenticated attackers can download in-house iOS app binaries and metadata by guessing predictable URLs on the enterprise tier.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-101047?
CVE-2026-101047 is a medium-severity missing authorization vulnerability in fleetdm fleet, published on 27 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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).
Weakness: CWE-862
Which versions are affected by CVE-2026-101047?
3 open source packages ship an affected version, including github.com/fleetdm/fleet/v4. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/fleetdm/fleet/v4 Go | All versions | 4.87.0 |
github.com/fleetdm/fleet/v4 Go | All versions | 4.87.0 |
github.com/fleetdm/fleet/v4 Go | All versions | 4.87.0 |
Products include Fleetdm Fleet.
How do I fix CVE-2026-101047?
Upgrade github.com/fleetdm/fleet/v4 to 4.87.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-101047 being exploited?
There is no known exploitation of CVE-2026-101047 in the wild and no public exploit code.
Other vulnerabilities in fleetdm fleet
- CVE-2020-26276 SAML authentication vulnerability in Fleet
- CVE-2026-103264 Fleet before 4.87.0 Authentication Bypass via Device Identifiers
- CVE-2026-23518 Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment
- CVE-2026-26062 Fleet server may terminate unexpectedly when handling certain gRPC requests
- CVE-2026-26061 Fleet's unbounded request body read allows remote Denial of Service
Sources
Also known as GHSA-jqp5-cmc9-xwxg, GHSA-q9c5-pp7m-fm2g, GO-2026-6268.