CVE-2025-27509
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
Fleet has SAML authentication vulnerability due to improper SAML response validation in github.com/fleetdm/fleet
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/fleetdm/fleet/v4 | >=4.64.0,<4.64.2 | 4.64.2 |
| Go | github.com/fleetdm/fleet/v4 | >=4.63.0,<4.63.2 | 4.63.2 |
| Go | github.com/fleetdm/fleet/v4 | >=4.62.0,<4.62.4 | 4.62.4 |
| Go | github.com/fleetdm/fleet/v4 | >=4.54.0,<4.58.1 | 4.58.1 |
| Go | github.com/fleetdm/fleet/v4 | <4.53.2 | 4.53.2 |
| Go | github.com/fleetdm/fleet/v4 | | |
References
- https://github.com/fleetdm/fleet/security/advisories/GHSA-52jx-g6m5-h735
- https://nvd.nist.gov/vuln/detail/CVE-2025-27509
- https://github.com/fleetdm/fleet/commit/718c95e47ad010ad6b8ceb3f3460e921fbfc53bb
- https://github.com/fleetdm/fleet
- https://github.com/fleetdm/fleet/releases/tag/fleet-v4.64.2
- https://pkg.go.dev/vuln/GO-2025-3505
Verify integrity in audit chain (admin only). AS-IS.