Search criteria
8 vulnerabilities by fleetdm
CVE-2026-23518 (GCVE-0-2026-23518)
Vulnerability from cvelistv5 – Published: 2026-01-21 21:50 – Updated: 2026-01-22 16:49
VLAI?
Title
Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment
Summary
Fleet is open source device management software. In versions prior to 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3, a vulnerability in Fleet's Windows MDM enrollment flow could allow an attacker to submit forged authentication tokens that are not properly validated. Because JWT signatures were not verified, Fleet could accept attacker-controlled identity claims, enabling enrollment of unauthorized devices under arbitrary Azure AD user identities. Versions 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an immediate upgrade is not possible, affected Fleet users should temporarily disable Windows MDM.
Severity ?
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2026-23517 (GCVE-0-2026-23517)
Vulnerability from cvelistv5 – Published: 2026-01-21 21:45 – Updated: 2026-01-22 16:49
VLAI?
Title
Fleet has an Access Control vulnerability in debug/pprof endpoints
Summary
Fleet is open source device management software. A broken access control issue in versions prior to 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 allowed authenticated users to access debug and profiling endpoints regardless of role. As a result, low-privilege users could view internal server diagnostics and trigger resource-intensive profiling operations. Fleet’s debug/pprof endpoints are accessible to any authenticated user regardless of role, including the lowest-privilege “Observer” role. This allows low-privilege users to access sensitive server internals, including runtime profiling data and in-memory application state, and to trigger CPU-intensive profiling operations that could lead to denial of service. Versions 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an immediate upgrade is not possible, users should put the debug/pprof endpoints behind an IP allowlist as a workaround.
Severity ?
CWE
- CWE-862 - Missing Authorization
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2026-22808 (GCVE-0-2026-22808)
Vulnerability from cvelistv5 – Published: 2026-01-21 21:18 – Updated: 2026-01-22 16:50
VLAI?
Title
Fleet Windows MDM endpoint has a Cross-site Scripting vulnerability
Summary
fleetdm/fleet is open source device management software. Prior to versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3, if Windows MDM is enabled, an unauthenticated attacker can exploit this XSS vulnerability to steal a Fleet administrator's authentication token (FLEET::auth_token) from localStorage. This could allow unauthorized access to Fleet, including administrative access, visibility into device data, and modification of configuration. Versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an immediate upgrade is not possible, affected Fleet users should temporarily disable Windows MDM.
Severity ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-27509 (GCVE-0-2025-27509)
Vulnerability from cvelistv5 – Published: 2025-03-06 19:00 – Updated: 2025-03-06 19:29
VLAI?
Title
SAML authentication vulnerability due to improper SAML response validation
Summary
fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a specially-formed SAML response to forge authentication assertions, provision a new administrative user account if Just-In-Time (JIT) provisioning is enabled, or create new accounts tied to forged assertions if f MDM enrollment is enabled. This vulnerability is fixed in 4.64.2, 4.63.2, 4.62.4, and 4.58.1.
Severity ?
CWE
- CWE-285 - Improper Authorization
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2022-24841 (GCVE-0-2022-24841)
Vulnerability from cvelistv5 – Published: 2022-04-18 21:20 – Updated: 2025-04-23 18:34
VLAI?
Title
Improper Authorization in github.com/fleetdm/fleet
Summary
fleetdm/fleet is an open source device management, built on osquery. All versions of fleet making use of the teams feature are affected by this authorization bypass issue. Fleet instances without teams, or with teams but without restricted team accounts are not affected. In affected versions a team admin can erroneously add themselves as admin, maintainer or observer on other teams. Users are advised to upgrade to version 4.13. There are no known workarounds for this issue.
Severity ?
6.5 (Medium)
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2022-23600 (GCVE-0-2022-23600)
Vulnerability from cvelistv5 – Published: 2022-02-04 22:32 – Updated: 2025-04-23 19:08
VLAI?
Title
Limited ability to spoof SAML authentication with missing audience verification
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.
Severity ?
5.3 (Medium)
CWE
- CWE-287 - Improper Authentication
Assigner
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CVE-2021-21296 (GCVE-0-2021-21296)
Vulnerability from cvelistv5 – Published: 2021-02-10 20:00 – Updated: 2024-08-03 18:09
VLAI?
Title
Denial-of-service in Fleet
Summary
Fleet is an open source osquery manager. In Fleet before version 3.7.0 a malicious actor with a valid node key can send a badly formatted request that causes the Fleet server to exit, resulting in denial of service. This is possible only while a live query is currently ongoing. We believe the impact of this vulnerability to be low given the requirement that the actor has a valid node key. There is no information disclosure, privilege escalation, or code execution. The issue is fixed in Fleet 3.7.0.
Severity ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
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CVE-2020-26276 (GCVE-0-2020-26276)
Vulnerability from cvelistv5 – Published: 2020-12-17 19:40 – Updated: 2024-08-04 15:56
VLAI?
Title
SAML authentication vulnerability in Fleet
Summary
Fleet is an open source osquery manager. In Fleet before version 3.5.1, due to issues in Go's standard library XML parsing, a valid SAML response may be mutated by an attacker to modify the trusted document. This can result in allowing unverified logins from a SAML IdP. Users that configure Fleet with SSO login may be vulnerable to this issue. This issue is patched in 3.5.1. The fix was made using https://github.com/mattermost/xml-roundtrip-validator If upgrade to 3.5.1 is not possible, users should disable SSO authentication in Fleet.
Severity ?
10 (Critical)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
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