TI-2026-36056 Aliases CVE-2026-48786 GHSA-88p2-jj8w-j8qg

Fleet: Observer-class users can view team enroll secrets and credential-bearing configuration via target search endpoint

LOW 29CWE-200Published 2026-08-26 · Updated 2026-08-26

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

Fleet is an open-source device management platform built on osquery. In versions prior to 4.87.0, the target search endpoint (POST /api/latest/fleet/targets) returned unmasked team enroll secrets and full team configuration, including credential-bearing agent options, to low-privilege observer-class users. Other team-facing endpoints mask these fields for observers, but the target search endpoint did not apply the same sanitization, so an authenticated user with the Observer, Observer+, or Technician role, whether global or team-scoped, could retrieve the secrets and agent options by performing a target search against an observer-runnable query. With a leaked team enroll secret an attacker could enroll unauthorized hosts into the affected team, and if the team's agent options contained credentials such as AWS secret access keys or proxy passwords, those values were disclosed as well. This issue is fixed in version 4.87.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00438 38th percentileScored 2026-11-07

Fix Fixed fleet (fleetdm): 4.87.0github.com/fleetdm/fleet/v4 (Go): 4.87.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
fleetdm	fleet	before 4.87.0	4.87.0	Patch available	CNA
—	github.com/fleetdm/fleet/v4 (Go)	before 4.87.0	4.87.0	Patch available	GHSA-88p2-jj8w-j8qg

fleet Vendorfleetdm Affected before 4.87.0 Fixed in 4.87.0 Patch available CNA
github.com/fleetdm/fleet/v4 (Go) Vendor— Affected before 4.87.0 Fixed in 4.87.0 Patch available GHSA-88p2-jj8w-j8qg

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:fleetdm:fleet::::::::	—	—	fleetdm

cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:* Versions — — ·fleetdm

Remediation

Fix · CNA fleet (fleetdm) Fixed in 4.87.0
Fix · GHSA-88p2-jj8w-j8qg github.com/fleetdm/fleet/v4 (Go) Fixed in 4.87.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-48786
2026-10-03 Alias added: GHSA-88p2-jj8w-j8qg

References

Other 4

TI-2026-29868 Fleet: Cross-Team Policy Data Exposure via Global Policy Read Endpoint CVSS 3.1MEDIUM 4.3
TI-2025-20341 SAML authentication vulnerability due to improper SAML response validation CVSS 4.0CRITICAL 9.3
TI-2026-65639 Fleet before 4.87.0 Authentication Bypass via Device Identifiers CVSS 4.0CRITICAL 9.3
TI-2026-18942 Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment CVSS 4.0CRITICAL 9.3
TI-2020-16097 SAML authentication vulnerability in Fleet CVSS 3.1CRITICAL 10.0
TI-2026-76130 Unbounded gzip decompression in Fleet enables denial of service CVSS 4.0HIGH 8.7

See all 40 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences