CVE-2026-62852

FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.226, RealtimeConvNewThread checks only general mailbox access and does not apply the conversation-level restriction for users configured to see only assigned conversations. A restricted authenticated user can subscribe to predictable conv.<conversation_id> Polycast channels for other conversations in the same mailbox. New event payloads can expose complete replies, internal notes, recipient addresses, conversation state, assignee data, attachment names, and attachment URLs containing valid download tokens. This issue is fixed in version 1.8.226.

• CWE-200
• CWE-639
• CWE-862

• https://github.com/freescout-help-desk/freescout/commit/e47a54a5af6c57181ef99711326f5886e940b776
• https://github.com/freescout-help-desk/freescout/releases/tag/1.8.226
• https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w668-wq26-6c94
• https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w668-wq26-6c94

Published

Nov 6, 2026

Last Modified

Nov 10, 2026

Status

Received

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-62847Metalama is a Roslyn-based open-source patterns and architec…8.2
• CVE-2026-62848Metalama is a Roslyn-based open-source patterns and architec…7.3
• CVE-2026-62849ThingLinks is an enterprise IoT platform. Prior to 1.4.0, an…9.1
• CVE-2026-6285Weak Password Recovery Mechanism for Forgotten Password vuln…7.5
• CVE-2026-62850FreeScout is a self-hosted help desk and shared mailbox. Pri…5.3
• CVE-2026-62851FreeScout is a self-hosted help desk and shared mailbox. Pri…4.3
• CVE-2026-62853ThingLinks is an enterprise IoT platform. Prior to 1.4.0, th…9.9
• CVE-2026-62854FreeScout is a self-hosted help desk and shared mailbox. Pri…7.6
• CVE-2026-62855FreeScout is a self-hosted help desk and shared mailbox. Pri…4.4
• CVE-2026-62856FreeScout is a self-hosted help desk and shared mailbox appl…7.7
• CVE-2026-62857Fedify is a TypeScript library for building federated server…8.8
• CVE-2026-62858YOURLS is a self-hosted, customizable URL shortener written …5.3