Is there a public exploit for CVE-2026-126402?

No public exploit for CVE-2026-126402 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-126402?

CVE-2026-126402 scores CVSS 8.6 (v4.0), rated high.

What does CVE-2026-126402 affect?

CVE-2026-126402 affects fleetdm Fleet.

8.6 High

Fleet before 4.89.0 contains an incorrect authorization flaw in its user administration API that accepts user creation or modification when…

CVE-2026-126402

Fleet before 4.89.0 contains an incorrect authorization flaw in its user administration API that accepts user creation or modification when the caller administers any one of the assigned teams. Authenticated team administrators can grant users administrator roles on other teams, then deploy software and execute scripts on those teams' hosts.

Assessment

CVSS: 8.6 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 13 November 2026
Last updated: 13 November 2026
Affected: fleetdm · Fleet
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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