Quick answers
- Is CVE-2026-102131 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-102131 being exploited in the wild.
- How severe is CVE-2026-102131?
- High severity, with a CVSS score of 7.2, published 30 September 2026.
- Which products and versions are affected?
- Kiteworks Email Protection Gateway before 9.5.0.
- Is there a fix for CVE-2026-102131?
- A patch was published on 2026-09-30: version 9.5.0 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-102131 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-102131?
- Check whether you run Kiteworks Email Protection Gateway 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.
Technical details
The vulnerability stems from improper handling of case sensitivity in configuration validation: the gateway rejects certain dangerous settings but fails to recognize all case variations of those settings. An authenticated administrator can exploit this by submitting configuration parameters in unrecognized case forms to bypass validation checks, achieving arbitrary code execution as the gateway service account. The issue affects all versions before 9.5.0 and requires administrator authentication but no user interaction.
Affected products
- Kiteworks Email Protection Gateway before 9.5.0
Timeline
- 2026-09-30: disclosed
- 2026-09-30: patched: version 9.5.0 released