CVE-2026-26060Network attack vector

Account takeover via reusable password reset token

Published Mar 27, 2026 · Updated Mar 27, 2026

Insufficient token expiration in Fleet before 4.81.0 allows remote attackers to reset an account password with a stale reset token. The password-change flow leaves previously issued reset tokens valid, and the reset-password endpoint continues accepting them. Exploitation requires prior compromise of a reset token within its 24-hour validity window and results in temporary account takeover.

CVSS severity6.0
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient token expiration in Fleet before 4.81.0 allows remote attackers to reset an account password with a stale reset token. The password-change flow leaves previously issued reset tokens valid, and the reset-password endpoint continues accepting them. Exploitation requires prior compromise of a reset token within its 24-hour validity window and results in temporary account takeover.

The record

CVE
CVE-2026-26060
Published
Mar 27, 2026
Updated
Mar 27, 2026
Vendor
Fleet Device Management
Product
Fleet
Classifications
CWE-613, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.81.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fleet Device Management · Fleetversion=< 4.81.0

Published CVSS scores

6.0GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1531Account Access Removal

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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