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CVE-2025-27509GHSA-52JX-G6M5-H735GO-2025-3505

SAML authentication vulnerability due to improper SAML response validation

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.64.2, 4.63.2, 4.62.4, 4.58.1, 4.53.2
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • fleetdm fleet

    From 4.64.0 · fixed in 4.64.2; From 4.63.0 · fixed in 4.63.2; From 4.62.0 · fixed in 4.62.4; fixed in 4.58.1

  • github.com/fleetdm/fleet/v4Go

    From 4.64.0 · fixed in 4.64.2

  • github.com/fleetdm/fleet/v4Go

    From 4.63.0 · fixed in 4.63.2

  • github.com/fleetdm/fleet/v4Go

    From 4.62.0 · fixed in 4.62.4

  • github.com/fleetdm/fleet/v4Go

    From 4.54.0 · fixed in 4.58.1

  • github.com/fleetdm/fleet/v4Go

    fixed in 4.53.2

  • github.com/fleetdm/fleet/v4Go

    All versions

References 3

GitHub · fleetdm/fleet

GitHub · Chillov3k/poc-cve-2025-27509