# CVE-2026-41553: Remote Code Execution in PDF Export Module

> Unauthenticated attackers can execute arbitrary code on the server via unsanitized input in the PDF Export Module.

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 May 2026
- **Updated:** 15 May 2026
- **Also known as:** GHSA-qc73-55rc-fgph

## What is CVE-2026-41553?

CVE-2026-41553 is a critical code injection vulnerability in DHTMLX PDF Export Module, published on 15 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

PDF Export Module used in DHTMLX's products Gantt and Scheduler is vulnerable to Remote Code Execution due to lack of "data" parameter sanitization. An unauthenticated attacker can inject the malicious JavaScript code to the parameter whose value is processed by Node.js and subsequently executed. This can lead to server compromise.

This issue was fixed in PDF Export Module version 0.7.6.

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

## Which versions are affected by CVE-2026-41553?

It affects 1 product.


Products: Dhtmlx Pdf Export Module.

## How do I fix CVE-2026-41553?

No fix has been published for CVE-2026-41553 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-41553 being exploited?

There is no known exploitation of CVE-2026-41553 in the wild and no public exploit code.

## Other vulnerabilities in DHTMLX PDF Export Module

- [CVE-2026-41552](https://insights.sbomify.com/CVE-2026-41552/): Path Traversal in PDF Export Module (critical 9.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-41553 and fix it if it is affected.

What it is: CVE-2026-41553 is a critical code injection vulnerability in DHTMLX PDF Export Module, published on 15 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-41553 in the wild and no public exploit code.

Affected product: DHTMLX PDF Export Module. 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-2026-41553/ (Markdown: https://insights.sbomify.com/CVE-2026-41553/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-41553
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41553
- OSV: https://osv.dev/vulnerability/CVE-2026-41553

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-41553/
Summaries are generated and may contain mistakes; the official description above is the record.