# CVE-2026-102125: Kiteworks Core Sandbox Escape

> A sandbox escape in Kiteworks Core allows attackers to escalate privileges, read or modify data, and disrupt services on the appliance.

- **Severity:** High 8.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Sep 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-fhrr-6c58-49wq

## What is CVE-2026-102125?

CVE-2026-102125 is a high-severity vulnerability in Accellion Kiteworks, published on 30 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The sandbox that isolates document conversion on a Kiteworks appliance did not fully confine the code running inside it. Code already executing within that sandbox could potentially escape its confinement and act with the privileges of the service account that runs the application, which could allow an attacker in that position to read or modify application data and configuration, or to disrupt the service on the affected appliance.

Weakness: CWE-668 (Exposure of Resource to Wrong Sphere), CWE-653 (Improper Isolation or Compartmentalization)

## Which versions are affected by CVE-2026-102125?

It affects 1 product.


Products: Accellion Kiteworks.

## How do I fix CVE-2026-102125?

No fix has been published for CVE-2026-102125 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-102125 being exploited?

There is no known exploitation of CVE-2026-102125 in the wild and no public exploit code.

## Other vulnerabilities in Accellion Kiteworks

- [CVE-2026-102115](https://insights.sbomify.com/CVE-2026-102115/): Kiteworks Core Authentication Bypass in the Password Reset Workflow (critical 9.8)
- [CVE-2026-102149](https://insights.sbomify.com/CVE-2026-102149/): Kiteworks Email Protection Gateway Improper Access Control (critical 9.4)
- [CVE-2026-102147](https://insights.sbomify.com/CVE-2026-102147/): Kiteworks Core Administrative Account Takeover through Stored Cross-site Scripting (XSS) (critical 9.3)
- [CVE-2026-102095](https://insights.sbomify.com/CVE-2026-102095/): Kiteworks Email Protection Gateway server-side request forgery (critical 9.1)
- [CVE-2026-102102](https://insights.sbomify.com/CVE-2026-102102/): Kiteworks Email Protection Gateway server-side request forgery (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-102125 and fix it if it is affected.

What it is: CVE-2026-102125 is a high-severity vulnerability in Accellion Kiteworks, published on 30 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-102125 in the wild and no public exploit code.

Affected product: Accellion Kiteworks. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-102125/ (Markdown: https://insights.sbomify.com/CVE-2026-102125/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-102125
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-102125
- OSV: https://osv.dev/vulnerability/CVE-2026-102125

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-102125/
Summaries are generated and may contain mistakes; the official description above is the record.