# CVE-2026-30235: Business Logic Error on OpenProject through hyperlinks in markdown using DOM clobbering


- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 11 Mar 2026
- **Updated:** 11 Mar 2026
- **Also known as:** GHSA-9rv2-9xv5-gpq8

## What is CVE-2026-30235?

CVE-2026-30235 is a medium-severity vulnerability in opf openproject, published on 11 Mar 2026. 

### Official description

OpenProject is an open-source, web-based project management software. Prior to 17.2.0, this vulnerability occurs due to improper validation of OpenProject’s Markdown rendering, specifically in the hyperlink handling. This allows an attacker to inject malicious hyperlink payloads that perform DOM clobbering. DOM clobbering can crash or blank the entire page by overwriting native DOM functions with HTML elements, causing critical JavaScript calls to throw runtime errors during application initialization and halt further execution. This vulnerability is fixed in 17.2.0.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-30235?

It affects 1 product.


Products: Openproject Openproject.

## How do I fix CVE-2026-30235?

No fix has been published for CVE-2026-30235 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30235 being exploited?

There is no known exploitation of CVE-2026-30235 in the wild and no public exploit code.

## Other vulnerabilities in opf openproject

- [CVE-2026-34717](https://insights.sbomify.com/CVE-2026-34717/): OpenProject: SQL Injection in Cost Reporting =n Operator via parse_number_string (critical 9.9)
- [CVE-2026-25763](https://insights.sbomify.com/CVE-2026-25763/): Command Injection on OpenProject repositories leads to Remote Code Execution (critical 9.4)
- [CVE-2026-24685](https://insights.sbomify.com/CVE-2026-24685/): OpenProject has Argument Injection on Repository module that allows Arbitrary File Write (critical 9.4)
- [CVE-2026-32698](https://insights.sbomify.com/CVE-2026-32698/): OpenProject has a SQL Injection via Custom Field Name that can be chained to Remote Code Execution (critical 9.1)
- [CVE-2026-32703](https://insights.sbomify.com/CVE-2026-32703/): OpenProject's repository files are served with the MIME type allowing them to be used to bypass Content Security Policy (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30235 and fix it if it is affected.

What it is: CVE-2026-30235 is a medium-severity vulnerability in opf openproject, published on 11 Mar 2026. 
Exploitation: There is no known exploitation of CVE-2026-30235 in the wild and no public exploit code.

Affected product: opf openproject. 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-2026-30235/ (Markdown: https://insights.sbomify.com/CVE-2026-30235/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30235
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30235
- OSV: https://osv.dev/vulnerability/CVE-2026-30235

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30235/
Summaries are generated and may contain mistakes; the official description above is the record.