Fleet before 4.83.0 Denial of Service via Unbounded Gzip Decompression
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.
CVE-2026-111924
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111924
fleet
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "fleetdm",
"product": "fleet",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "4.83.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.83.0",
"versionType": "semver"
}
],
"packageURL": "pkg:golang/github.com/fleetdm/fleet",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111924
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #41885 · Revision 1
- Added to Heist Feed
- Publisher date