PT-2026-21854 · Freescout · Freescout

Offensive-Ai · Published 2026-02-25 · Updated 2026-03-02 · CVE-2026-27637

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions FreeScout versions prior to 1.8.206

Description FreeScout’s TokenAuth middleware generates authentication tokens using a predictable method: MD5(user id + created at + APP KEY). These tokens are static and do not expire or rotate. If an attacker obtains the APP KEY – a common exposure vector in Laravel applications – they can compute a valid token for any user, including the administrator, leading to full account takeover without requiring a password. The user id and created at are components used in the token generation.

Recommendations Upgrade to FreeScout version 1.8.206 or later.

Exploit

Fix

Use of Insufficiently Random Values

Weakness Enumeration

CWE-330

Related Identifiers

CVE-2026-27637

GHSA-6GCM-V8XF-J9V9

GHSA-MW88-X7J3-74VC

Affected Products

Freescout

References · 18

• 🔥 https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc · Exploit
• 🔥 https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27637.json · Exploit
• https://github.com/freescout-help-desk/freescout/commit/004a8231f6e413af1d4680930b0e2342fd4283f9 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-27637 · Security Note
• https://osv.dev/vulnerability/CVE-2026-27637 · Vendor Advisory
• https://t.me/CVEtracker/45680 · Telegram Post
• https://twitter.com/pulsepatchio/status/2027035778056913014 · Twitter Post
• https://t.me/CVEtracker/45679 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2026548061464412321 · Twitter Post
• https://twitter.com/cracbot/status/2028425206629564916 · Twitter Post
• https://twitter.com/CCBalert/status/2026668237866381388 · Twitter Post
• https://twitter.com/CveTodo/status/2026516543245303824 · Twitter Post
• https://t.me/cveNotify/153098 · Telegram Post
• https://t.me/cveNotify/153097 · Telegram Post