CVE-2026-102127 Kiteworks Email Protection Gateway Improper Restriction of XML External Entity Reference
Remote attackers can read sensitive files via XXE in Kiteworks Email Protection Gateway when optional message processing is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102127?
CVE-2026-102127 is a high-severity vulnerability in Accellion Kiteworks, published on 30 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An XML parser used by Kiteworks Email Protection Gateway did not restrict external entity references. Where an optional, non-default message-processing feature is enabled, a remote and unauthenticated sender could potentially use a crafted message to read files accessible to the gateway service account, including cryptographic key material and credentials, and have them sent to a destination they control.
Weakness: CWE-611
Which versions are affected by CVE-2026-102127?
It affects 1 product.
Products include Accellion Kiteworks.
How do I fix CVE-2026-102127?
No fix has been published for CVE-2026-102127 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102127 being exploited?
There is no known exploitation of CVE-2026-102127 in the wild and no public exploit code.
Other vulnerabilities in Accellion Kiteworks
- CVE-2026-102115 Kiteworks Core Authentication Bypass in the Password Reset Workflow
- CVE-2026-102149 Kiteworks Email Protection Gateway Improper Access Control
- CVE-2026-102147 Kiteworks Core Administrative Account Takeover through Stored Cross-site Scripting (XSS)
- CVE-2026-102095 Kiteworks Email Protection Gateway server-side request forgery
- CVE-2026-102102 Kiteworks Email Protection Gateway server-side request forgery