Vulnerability in Kiteworks Email Protection Gateway

[ Description ]Official description

A path traversal weakness in an optional, non-default administrative feature allowed an authenticated administrator to move files to unintended locations outside the feature's designated directory. This could potentially be leveraged to execute arbitrary code on the underlying system.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• NCSC-NL8 Oct 2026NCSC-2026-0408

  Vulnerabilities fixed in Kiteworks Translated from Dutch

  Probability/damage M/HCVE-2026-102089CVE-2026-102090CVE-2026-102091+58 more CVEs
• BSI CERT-Bund30 Sep 2026WID-SEC-2026-3695

  Kiteworks: Multiple vulnerabilities Translated from German

  CVE-2026-102100CVE-2026-102144CVE-2026-102117+58 more CVEs

[ References ]References

• github.com/kiteworks/security-advisories/security/advisories/GHSA-3r3r-hp4c-pxmhVendor Advisory
• raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.jsonBroken Link