CVE-2026-45184Public exploit

Code execution via unvalidated proxy parameters

Published May 9, 2026 · Updated May 9, 2026

Code execution in KDE Kdenlive before 26.04.1 allows attackers to execute code by inducing a user to open a malicious project file. The proxy-generation job splits the project-controlled proxyparams property into FFmpeg arguments and launches FFmpeg without rejecting dangerous options. Opening an untrusted .kdenlive file is required; crafted arguments can extract and load a shared library, enabling code execution and file exfiltration.

CVSS severity6.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in KDE Kdenlive before 26.04.1 allows attackers to execute code by inducing a user to open a malicious project file. The proxy-generation job splits the project-controlled proxyparams property into FFmpeg arguments and launches FFmpeg without rejecting dangerous options. Opening an untrusted .kdenlive file is required; crafted arguments can extract and load a shared library, enabling code execution and file exfiltration.

The record

CVE
CVE-2026-45184
Published
May 9, 2026
Updated
May 9, 2026
Vendor
KDE
Product
Kdenlive
Classifications
CWE-829, CAPEC-201, CAPEC-175, T1204.002, T1129
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 9, 2026CVE publishedPublication date reported by the CVE source.
  2. May 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <26.04.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

KDE · Kdenliveversion=0 <26.04.1

Published CVSS scores

6.5MITRECVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-829Inclusion of Functionality from Untrusted Control Sphere
CAPEC-201Serialized Data External Linking
CAPEC-175Code Inclusion
T1204.002Malicious File
T1129Shared Modules

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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