CVE-2025-49127Public exploitNetwork attack vector

Unauthenticated code execution via hostile JMX deserialization

Published Jun 6, 2025 · Updated Jun 9, 2025

Unsafe deserialization in Kafka UI 1.0.0 allows remote attackers to execute arbitrary code through a configured JMX metrics endpoint. The unauthenticated /api/config route accepts an attacker-controlled cluster, and the metrics client follows its JMX RMI URL and deserializes objects returned by the hostile JRMP server. Dynamic configuration must be enabled and the server must reach the hostile JMX endpoint; successful commands run as the application service account.

CVSS severityUnavailable
Unscored
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in Kafka UI 1.0.0 allows remote attackers to execute arbitrary code through a configured JMX metrics endpoint. The unauthenticated /api/config route accepts an attacker-controlled cluster, and the metrics client follows its JMX RMI URL and deserializes objects returned by the hostile JRMP server. Dynamic configuration must be enabled and the server must reach the hostile JMX endpoint; successful commands run as the application service account.

The record

CVE
CVE-2025-49127
Published
Jun 6, 2025
Updated
Jun 9, 2025
Vendor
Provectus
Product
Kafka UI
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion== 1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Provectus · Kafka UIversion== 1.0.0

Published CVSS scores

8.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1190Exploit Public-Facing Application

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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