Is CVE-2026-102105 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-102105 being exploited in the wild.

How severe is CVE-2026-102105?

Critical severity, with a CVSS score of 9.1, published 30 September 2026.

Which products and versions are affected?

Kiteworks Email Protection Gateway before 9.5.0.

Is there a fix for CVE-2026-102105?

A patch was published on 2026-09-30: version 9.5.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-102105 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-102105?

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.

CVE-2026-102105: Kiteworks Email Protection Gateway SSRF

CVE-2026-102105 · Severity: critical · CVSS 9.1 · Published 2026-09-30

Kiteworks Email Protection Gateway is a security appliance that filters and protects email communications for organizations. A server-side request forgery vulnerability allows unauthenticated attackers to force the gateway to make crafted requests to internal systems when processing email messages with external resource references. Exploitation could expose sensitive internal information, trigger unintended actions on internal services, or provide a foothold for further attacks.

Technologies: Kiteworks Email Protection Gateway. Vendors: Kiteworks.

Quick answers

Is CVE-2026-102105 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-102105 being exploited in the wild.
How severe is CVE-2026-102105?: Critical severity, with a CVSS score of 9.1, published 30 September 2026.
Which products and versions are affected?: Kiteworks Email Protection Gateway before 9.5.0.
Is there a fix for CVE-2026-102105?: A patch was published on 2026-09-30: version 9.5.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-102105 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-102105?: 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 SSRF vulnerability exists in the message content rendering functionality of Kiteworks Email Protection Gateway versions prior to 9.5.0, triggered when the gateway processes external resource references in email messages. An unauthenticated remote attacker can exploit this via network access to force the gateway to issue requests to internal or unintended destinations, potentially disclosing sensitive data or compromising internal systems. A fix is available in version 9.5.0 and later.

Affected products

Kiteworks Email Protection Gateway before 9.5.0

Timeline

2026-09-30: disclosed
2026-09-30: patched: version 9.5.0

References

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