# CVE-2026-62852: FreeScout authorization bypass in RealtimeConvNewThread

Source: https://junglewise.ai/threats/cve-2026-62852-freescout-is-a-self-hosted-help-desk-and-shared-mailbox-prior-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-06. Updated: 2026-11-06  
License: CC BY 4.0 with a link back

CVE-2026-62852 · Severity: medium · CVSS 6.5 · Published 2026-11-06

FreeScout is a self-hosted help desk platform that manages customer conversations and shared mailboxes. A vulnerability allows authenticated users with restricted access to view conversations they should not have permission to see, potentially exposing sensitive customer replies, internal notes, email addresses, and file downloads from other conversations in the same mailbox.

Technologies: [FreeScout](https://junglewise.ai/threats/technologies/freescout-freescout). Vendors: [FreeScout](https://junglewise.ai/threats/vendors/freescout).

## Quick answers

**Is CVE-2026-62852 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-62852 being exploited in the wild.

**How severe is CVE-2026-62852?** Medium severity, with a CVSS score of 6.5, published 6 November 2026.

**Which products and versions are affected?** FreeScout before 1.8.226.

**Is there a fix for CVE-2026-62852?** Yes: fixed in 1.8.226. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-62852 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-62852?** Check whether you run FreeScout at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 1.8.226

## Technical details

The RealtimeConvNewThread Polycast event handler in FreeScout prior to 1.8.226 performs mailbox-level access checks but fails to enforce conversation-level restrictions. An authenticated user configured to view only assigned conversations can subscribe to predictable conv.<conversation_id> channels to receive event payloads containing complete thread data, attachments with valid download tokens, and metadata for conversations they should not access. The fix adds conversation-level authorization checks using Laravel's policy-based authorization.

## Affected products

- FreeScout FreeScout before 1.8.226

## Timeline

- 2026-11-06: disclosed

## References

- [https://github.com/freescout-help-desk/freescout/commit/e47a54a5af6c57181ef99711326f5886e940b776](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/releases/tag/1.8.226)

## Related threats

- [FreeScout stored XSS in job details page](https://junglewise.ai/threats/cve-2026-85742-freescout-is-a-self-hosted-help-desk-and-shared-mailbox-prior-to)
- [FreeScout authorization bypass in conversation merge](https://junglewise.ai/threats/cve-2026-85744-freescout-is-a-self-hosted-help-desk-and-shared-mailbox-prior-to)
- [FreeScout SSRF in remote download and port check](https://junglewise.ai/threats/cve-2026-85743-freescout-is-a-self-hosted-help-desk-and-shared-mailbox-prior-to)
- [FreeScout SQL injection in polycast receive endpoint](https://junglewise.ai/threats/cve-2026-62856-freescout-is-a-self-hosted-help-desk-and-shared-mailbox)
- [FreeScout path traversal in App Logs viewer](https://junglewise.ai/threats/cve-2026-62855-freescout-is-a-self-hosted-help-desk-and-shared-mailbox-prior-to)