CVE-2026-40592FreeScout's cross-user undo reply allows mailbox peers to recall another agent's outbound reply
Updated under an hour ago ()
Does this affect you?
It affects freescout-help-desk freescout. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the undo-send route `GET /conversation/undo-reply/{thread_id}` checks only whether the current user can view the parent conversation. It does not verify that the current user created the reply being undone. In a shared mailbox, one agent can therefore recall another agent's just-sent reply during the 15-second undo window. Version 1.8.214 fixes the vulnerability.
- CVSS
- 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Apr 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
freescout-help-desk freescout freescout_help_desk:freescout (from the name) | before 1.8.214 | CNA record |
References
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-674v-r6xp-mvp6x-refsource-confirm
- https://github.com/freescout-help-desk/freescout/commit/c779afdda86fa00a4b85779e034bbfd9ce20c76dx-refsource-misc
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.214x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.