Permanent Account Takeover Vulnerability in FreeScout Help Desk by FreeScout
CVE-2026-41902

9.1CRITICAL

Key Information:

Vendor

Freescout-help-desk

Status
Freescout
Vendor
CVE Published:
7 May 2026

What is CVE-2026-41902?

FreeScout, a free help desk and shared inbox application built on the Laravel PHP framework, contains a significant vulnerability that allows for permanent account takeover. The /user-setup/{hash} endpoint accepts a 60-character random invite_hash without enforcing any expiration. This means that once the invite hash is generated, it remains valid indefinitely. If this hash is leaked—through forwarded emails, external referrer logs, or abandoned invites—attackers can gain unauthorized access to accounts, including those of administrators. The flaw is particularly concerning as it permits access months or even years after the invite was initially issued. This vulnerability has been resolved in version 1.8.217.

Affected Version(s)

freescout < 1.8.217

References

https://github.com/freescout-help-desk/freescout/security...
x_refsource_CONFIRM
https://github.com/freescout-help-desk/freescout/releases...
x_refsource_MISC

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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