CVE-2026-111924
Fleet before 4.83.0 Denial of Service via Unbounded Gzip Decompression
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-409 |
| Vendor | fleetdm |
| Product | fleet |
| Published | Oct 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
fleetdm / fleet
0 < 4.83.0
References
Credits
🔍 fuzzztf