CVE-2026-26061

HIGH

7.5

Description

Fleet is open source device management software. Prior to 4.81.0, Fleet contained multiple unauthenticated HTTP endpoints that read request bodies without enforcing a size limit. An unauthenticated attacker could exploit this behavior by sending large or repeated HTTP payloads, causing excessive memory allocation and resulting in a denial-of-service (DoS) condition. Version 4.81.0 patches the issue.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/27/2026

Last Modified3/31/2026

Sourcenvd

Honeypot Sightings0

Affected Products

fleetdm:fleet

Weaknesses (CWE)

CWE-770

References

https://github.com/fleetdm/fleet/security/advisories/GHSA-99hj-44vg-hfcp(security-advisories@github.com)

IOC Correlations

No correlations recorded

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