CVE-2026-26060 Fleet: Password reset tokens remain valid after password change for 24 hours

What is CVE-2026-26060?

CVE-2026-26060 is a medium-severity vulnerability in fleetdm fleet, published on 27 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Fleet is open source device management software. Prior to 4.81.0, a vulnerability in Fleet’s password management logic could allow previously issued password reset tokens to remain valid after a user changes their password. As a result, a stale password reset token could be reused to reset the account password even after a defensive password change. Version 4.81.0 patches the issue.

Weakness: CWE-613

Which versions are affected by CVE-2026-26060?

3 open source packages ship an affected version, including github.com/fleetdm/fleet/v4. It affects 1 product.

Products include Fleetdm Fleet.

How do I fix CVE-2026-26060?

Upgrade github.com/fleetdm/fleet/v4 to 4.43.5-0.20260113202849-bbc1aef2987d or later.

Is CVE-2026-26060 being exploited?

There is no known exploitation of CVE-2026-26060 in the wild and no public exploit code.

Other vulnerabilities in fleetdm fleet

• CVE-2020-26276 SAML authentication vulnerability in Fleet Critical 10.0
• CVE-2026-103264 Fleet before 4.87.0 Authentication Bypass via Device Identifiers Critical 9.3
• CVE-2026-23518 Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment Critical 9.3
• CVE-2026-26062 Fleet server may terminate unexpectedly when handling certain gRPC requests High 8.7
• CVE-2026-26061 Fleet's unbounded request body read allows remote Denial of Service High 8.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3458-r943-hmx4, GO-2026-4888.