Improper Handling of Unexpected Data Type Affecting github.com/fleetdm/fleet/server/launcher package, versions <4.81.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published7 Jun 2026
- disclosed14 May 2026
- creditfuzzztf
Introduced: 14 May 2026
CVE-2026-26062 Â (opens in a new tab)How to fix?
Upgrade github.com/fleetdm/fleet/server/launcher to version 4.81.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Handling of Unexpected Data Type via the PublishLogs endpoint. An authenticated gRPC request from an enrolled launcher host can cause the server process to panic and terminate unexpectedly.