CVE-2026-23636 Kiteworks Secure Data Forms is vulnerable to an Unrestricted Upload of File with Dangerous Type
Medium 5.5
Published
Updated
Check this codebase for CVE-2026-23636 and fix it if it is affected.
What it is: CVE-2026-23636 is a medium-severity vulnerability in Accellion Kiteworks, published on 25 Mar 2026.
Exploitation: There is no known exploitation of CVE-2026-23636 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-2026-23636/ (Markdown: https://insights.sbomify.com/CVE-2026-23636/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-23636?
CVE-2026-23636 is a medium-severity vulnerability in Accellion Kiteworks, published on 25 Mar 2026.
Official description
Kiteworks is a private data network (PDN). In Kiteworks Secure Data Forms prior to version 9.2.1, the manager of a form could potentially exploit an Unrestricted Upload of File with Dangerous Type due to a missing validation. Upgrade Kiteworks to version 9.2.1 or later to receive a patch.
Weakness: CWE-434
Which versions are affected by CVE-2026-23636?
It affects 1 product.
Products include Accellion Kiteworks.
How do I fix CVE-2026-23636?
No fix has been published for CVE-2026-23636 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-23636 being exploited?
There is no known exploitation of CVE-2026-23636 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