What is CVE-2026-26061?

CVE-2026-26061 is a high-severity vulnerability in Fleetdm Fleet, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-03-27.

How severe is CVE-2026-26061?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Fleetdm Fleet

CVE-2026-26061

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 s…

EPSS: 0.004 (35.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Fleetdm Fleet — versions < 4.81.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-26061?: CVE-2026-26061 is a high-severity vulnerability in Fleetdm Fleet, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-03-27.
How severe is CVE-2026-26061?: High severity. CVSS v3 base score is 7.5 out of 10.