# CVE-2026-26061

## Summary

- **CVE ID:** CVE-2026-26061
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-770
- **Published:** Mar 27, 2026
- **Last Modified:** Mar 31, 2026

## 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.

## Affected Products

- fleetdm — fleet (< 4.81.0)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.43%
- **EPSS Percentile:** 36.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._