CVE-2025-27509

SAML authentication vulnerability due to improper SAML response validation

State: Published
Severity: 9.3 Critical
Published: Mar 6, 2025
Updated: Mar 6, 2025
Reserved: Feb 26, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-285 Improper Authorization

Affected Products

Product	Versions
fleetfleetdm	>= 4.64.0, < 4.64.2Affected >= 4.63.0, < 4.63.2Affected >= 4.62.0, < 4.62.4Affected < 4.58.1Affected

References

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