CVE-2026-40592
mediumpriority · track · 0OT risk · elevatedEPSS 0.002 · 15 %ileEUEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://freescout.net/Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-40592cnnvd
- https://github.com/freescout-help-desk/freescout/commit/c779afdda86fa00a4b85779e034bbfd9ce20c76denisa_euvd
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.214enisa_euvd
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-674v-r6xp-mvp6enisa_euvd
- https://github.com/freescout-help-desk/freescout/commit/c779afdda86fa00a4b85779e034bbfd9ce20c76dnvd
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.214nvd
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-674v-r6xp-mvp6nvd
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