HIGH 8.7 NVD
CVE-2026-111924
Fleet before 4.83.0 contains a denial of service vulnerability that allows unauthenticated attackers to exhaust server memory by sending gzip-compressed request
Fleet before 4.83.0 contains a denial of service vulnerability that allows unauthenticated attackers to exhaust server memory by sending gzip-compressed request bodies. Attackers can send small, highly compressed requests with Content-Encoding: gzip to unauthenticated endpoints that expand during decoding, crashing the entire Fleet instance.
References
- https://github.com/fleetdm/fleet/security/advisories/GHSA-3982-g48v-9rwh
- https://www.vulncheck.com/advisories/fleet-before-4.83.0-denial-of-service-via-unbounded-g
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-10-17 via NVD.
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