CVE-2026-41905 HIGH

CVE-2026-41905: FreeScout vulnerable to SSRF via Helper::sanitizeRemoteUrl: redirect destination not re-validated, allowing internal HTTP / cloud-metadata access

Vendor Freescout-Help-Desk
Product freescout
Weakness CWE-918 · SSRF
Published May 7, 2026
Last update May 7, 2026
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, Helper::sanitizeRemoteUrl() in app/Misc/Helper.php follows HTTP redirects via curlGetLastRedirectedUrl() but then re-validates the original URL instead of the final redirect destination. An attacker who can supply any URL that passes the initial host check can redirect FreeScout to internal HTTP services (cloud metadata, internal APIs, RFC1918 ranges) that would normally be blocked. This issue has been patched in version 1.8.217.

Key dates

02Disclosure timeline

May 7, 2026 CVE published
May 7, 2026 Record updated