CVE-2026-23518

unknown

Published 2026-01-20 · Modified 2026-02-04

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment in github.com/fleetdm/fleet

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/fleetdm/fleet	`>=4.78.0,<4.78.3`	`4.78.3`
Go	github.com/fleetdm/fleet	`>=4.77.0,<4.77.1`	`4.77.1`
Go	github.com/fleetdm/fleet	`>=4.76.0,<4.76.2`	`4.76.2`
Go	github.com/fleetdm/fleet	`>=4.75.0,<4.75.2`	`4.75.2`
Go	github.com/fleetdm/fleet	`<4.43.5-0.20260112202845-e225ef57912c`	`4.43.5-0.20260112202845-e225ef57912c`
Go	github.com/fleetdm/fleet/v4	`>=4.78.0,<4.78.3`	`4.75.2`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.