# CVE-2026-102120: Kiteworks Core OS Command Injection

> Attacker with node access can execute OS commands with elevated privileges on other cluster nodes via insufficient input validation in internal management functions.

- **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

## What is CVE-2026-102120?

CVE-2026-102120 is a high-severity command injection 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

A privilege escalation vulnerability in Kiteworks could have allowed an attacker who had already obtained code execution on one node of a clustered Kiteworks deployment to run operating system commands with elevated privileges on another node of the same cluster. Insufficient input validation in an internal cluster management function let attacker-supplied values reach a privileged execution context; exploitation requires existing access to a node in the cluster, and the affected function is not reachable from outside the cluster.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2026-102120?

It affects 1 product.


Products: Accellion Kiteworks.

## How do I fix CVE-2026-102120?

No fix has been published for CVE-2026-102120 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-102120 being exploited?

There is no known exploitation of CVE-2026-102120 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-2026-102120 and fix it if it is affected.

What it is: CVE-2026-102120 is a high-severity command injection 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-2026-102120 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-2026-102120/ (Markdown: https://insights.sbomify.com/CVE-2026-102120/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-102120
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-102120
- OSV: https://osv.dev/vulnerability/CVE-2026-102120

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-102120/
Summaries are generated and may contain mistakes; the official description above is the record.