Code Injection Vulnerability in Provectus Kafka-UI by Provectus
CVE-2026-78166

5.3MEDIUM

Key Information:

Vendor

Provectus

Status
Kafka-ui
Vendor
CVE Published:
24 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-78166?

A security flaw exists in the Apache Kafka user interface provided by Provectus, specifically in the executeSmartFilterTest function within the Groovy Code Handler. This vulnerability permits an attacker to inject malicious code remotely, leading to potential unauthorized access and manipulation of the application. The flaw impacts versions up to 0.7.2, and despite early notification to the project maintainers, an official response has not yet been documented. Given the release of the exploit into the public domain, immediate mitigation and patching are advised to safeguard systems.

Affected Version(s)

kafka-ui 0.7.0

kafka-ui 0.7.1

kafka-ui 0.7.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-78166 - Proof of Concept

References

https://vuldb.com/vuln/394555
vdb-entrytechnical-description
https://vuldb.com/vuln/394555/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-78166
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

geochen (VulDB User)
VulDB CNA Team
.