# CVE-2026-54668: Kitodo.Production is a workflow management tool for mass digitization and is part of the Kitodo Digital Library Suite.


- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 23 Oct 2026
- **Updated:** 29 Oct 2026
- **Also known as:** GHSA-mff2-fpqj-jg4q

## What is CVE-2026-54668?

CVE-2026-54668 is a high-severity vulnerability in kitodo-production, published on 23 Oct 2026. 

### Official description

Kitodo.Production is a workflow management tool for mass digitization and is part of the Kitodo Digital Library Suite. Prior to version 3.9.2, org.kitodo.production.helper.XMLUtils exposes several XML parsing helpers that construct a JAXP parser with the default, non-secure configuration. The methods parseXMLString(String), getNumberOfEADElements(String, String) and checkIfXmlIsWellFormed(String) build a DocumentBuilderFactory / XMLInputFactory / SAXParserFactory via newInstance() and parse the attacker-supplied string without disabling DOCTYPE declarations or external entity resolution. These helpers sit directly on the EAD-import path: an authenticated user who uploads an EAD/XML file through the "Create process" file-upload dialog has the uploaded bytes parsed by these methods. A crafted document with an external entity therefore yields XML External Entity (XXE) injection: local file disclosure and outbound SSRF requests from the server. This issue has been patched in version 3.9.2.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2026-54668?


## How do I fix CVE-2026-54668?

No fix has been published for CVE-2026-54668 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-54668 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54668 exists.

Public exploit code:

- PoC for CVE-2026-54668 — XXE injection in Kitodo.Production (< 3.9.2) XMLUtils. Default-configured JAXP parsers on the EAD-import path resolve external entities: local file disclosure + SSRF. Verified on JDK 17. Java, no dependencies. (github_poc): https://github.com/KernelEditor/CVE-2026-54668

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-54668 and fix it if it is affected.

What it is: CVE-2026-54668 is a high-severity vulnerability in kitodo-production, published on 23 Oct 2026. 
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54668 exists.

Affected product: kitodo-production. 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-2026-54668/ (Markdown: https://insights.sbomify.com/CVE-2026-54668/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-54668
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54668
- OSV: https://osv.dev/vulnerability/CVE-2026-54668

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-54668/
Summaries are generated and may contain mistakes; the official description above is the record.