# CVE-2026-45184: KDE Kdenlive remote code execution via malicious project file

Source: https://junglewise.ai/threats/cve-2026-45184-kde-kdenlive-remote-code-execution-via-malicious-project-file  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-09. Updated: 2026-07-20  
License: CC BY 4.0 with a link back

CVE-2026-45184 · Severity: medium · CVSS 6.5 · Published 2026-05-09

Kdenlive is a professional open-source video editing application. A security flaw allows a malicious project file to execute unauthorized commands or steal data when opened by a user. This could lead to a full system compromise if a user is tricked into opening a project file from an untrusted source.

Vendors: [Kde](https://junglewise.ai/threats/vendors/kde).

## Quick answers

**Is CVE-2026-45184 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45184 being exploited in the wild.

**How severe is CVE-2026-45184?** Medium severity, with a CVSS score of 6.5, published 9 May 2026.

**Which products and versions are affected?** Kdenlive < 26.04.1.

**Is there a fix for CVE-2026-45184?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-45184 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-45184?** Check whether you run Kdenlive at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability exists in Kdenlive's handling of proxy parameters within project files (CWE-829). The application failed to properly sanitize parameters passed to the underlying FFmpeg process during proxy clip generation. An attacker can craft a malicious project file containing dangerous FFmpeg arguments (such as -attach, -metadata, or protocol_whitelist) to achieve arbitrary code execution or file exfiltration. Exploitation requires a user to open a specially crafted .kdenlive project file. The issue is resolved in version 26.04.1 by implementing a blocklist for sensitive parameters and enforcing a strict protocol whitelist (file, pipe).

## Affected products

- KDE Kdenlive < 26.04.1

## Timeline

- 2026-04-03: other: Initial proxy parameter cleanup commit authored
- 2026-04-24: other: Parameter sanitization commit authored
- 2026-05-08: advisory: KDE Project Security Advisory released
- 2026-05-09: disclosed: CVE published to NVD

## References

- [https://commits.kde.org/kdenlive/94042ddd259551e4a7a5f6672329752972c84685](https://commits.kde.org/kdenlive/94042ddd259551e4a7a5f6672329752972c84685)
- [https://commits.kde.org/kdenlive/c3999aacc6da54756f3df8aab03b900459562ecd](https://commits.kde.org/kdenlive/c3999aacc6da54756f3df8aab03b900459562ecd)
- [https://kde.org/info/security/advisory-20260508-1.txt](https://kde.org/info/security/advisory-20260508-1.txt)