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TI-2022-07653 Aliases CVE-2022-23600GHSA-ch68-7cf4-35vr

Limited ability to spoof SAML authentication with missing audience verification

Priority LOW 31CWE-287Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

fleet is an open source device management, built on osquery. Versions prior to 4.9.1 expose a limited ability to spoof SAML authentication with missing audience verification. This impacts deployments using SAML SSO in two specific cases: 1. A malicious or compromised Service Provider (SP) could reuse the SAML response to log into Fleet as a user -- only if the user has an account with the same email in Fleet, _and_ the user signs into the malicious SP via SAML SSO from the same Identity Provider (IdP) configured with Fleet. 2. A user with an account in Fleet could reuse a SAML response intended for another SP to log into Fleet. This is only a concern if the user is blocked from Fleet in the IdP, but continues to have an account in Fleet. If the user is blocked from the IdP entirely, this cannot be exploited. Fleet 4.9.1 resolves this issue. Users unable to upgrade should: Reduce the length of sessions on your IdP to reduce the window for malicious re-use, Limit the amount of SAML Service Providers/Applications used by user accounts with access to Fleet, and When removing access to Fleet in the IdP, delete the Fleet user from Fleet as well.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00893 59th percentileScored 2026-11-07
Fix Fixed fleet (fleetdm): 4.9.1github.com/fleetdm/fleet/v4 (Go): 4.9.1

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

VendorProductAffected versionsFixed inStatusSource
fleetdmfleetbefore 4.9.14.9.1Patch availableCNA
—github.com/fleetdm/fleet/v4 (Go)before 4.9.14.9.1Patch availableGHSA-ch68-7cf4-35vr
  • fleet Vendorfleetdm Affected before 4.9.1 Fixed in 4.9.1 Patch available CNA
  • github.com/fleetdm/fleet/v4 (Go) Vendor— Affected before 4.9.1 Fixed in 4.9.1 Patch available GHSA-ch68-7cf4-35vr

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*before 4.9.1Vulnerablefleetdm
  • cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:* Versions before 4.9.1 Vulnerable ·fleetdm

Remediation

  • Fix · CNA fleet (fleetdm) Fixed in 4.9.1
  • Fix · GHSA-ch68-7cf4-35vr github.com/fleetdm/fleet/v4 (Go) Fixed in 4.9.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-23600
  2. 2026-10-03 Alias added: GHSA-ch68-7cf4-35vr

References

Patch 1

Advisory 2

Other 1

  • 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-2026-21066 Fleet server may terminate unexpectedly when handling certain gRPC requests CVSS 4.0HIGH 8.7
  • TI-2026-21065 Fleet's unbounded request body read allows remote Denial of Service CVSS 4.0HIGH 8.7
  • TI-2026-20084 Fleet Windows MDM Azure AD JWT Authentication Bypass CVSS 4.0HIGH 8.2
See all 31 →

Sources

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