Improper Input ValidationWeakness · CWE-20

CVE-2025-60537

MEDIUM · 6.5 CVSS v3.1 Published 2025-10-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Improper input validation in the component /kafka/ui/serdes/CustomSerdeLoader.java of kafka-ui v0.6.0 to v0.7.2 allows attackers to execute arbitrary code via supplying crafted data.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Improper input validation in CustomSerdeLoader.java of kafka-ui versions 0.6.0 to 0.7.2 allows remote attackers to execute arbitrary code by supplying crafted data through the serialization/deserialization component.

MitigationUpgrade kafka-ui to v0.7.3 or later which contains the patched version. As a compensating control, restrict access to the CustomSerdeLoader functionality and implement network-level segmentation.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify kafka-ui version
    Locate the running kafka-ui instance and retrieve its version number (typically visible in the UI footer, in startup logs, or via the /api/version endpoint if available). Compare this version against the affected range 0.6.0 to 0.7.2.
    Affected if The installed version falls within 0.6.0 through 0.7.2 inclusive.
  2. Confirm CustomSerdeLoader component presence
    Inspect the kafka-ui deployment for the presence of the CustomSerdeLoader.java compiled class or its source file within the kafka-serde or similar serialization-related package. Check application startup logs for references to CustomSerdeLoader initialization.
    Affected if CustomSerdeLoader is present and loaded by the application.
  3. Verify serialization/deserialization features are in use
    Review kafka-ui configuration files (application.yml or application.properties) for any custom serde configurations, schema registry settings, or custom serializer/deserializer definitions that would invoke CustomSerdeLoader.
    Affected if Custom serde configurations or custom serializers are defined and active in the configuration.
  4. Assess network accessibility
    Determine if the kafka-ui web interface is exposed to untrusted networks. Check firewall rules, reverse proxy configurations, or cloud security groups that permit access to the kafka-ui port (typically 8080).
    Affected if Kafka-ui is accessible from networks beyond the trusted administrative segment.

A user is affected if their kafka-ui version is between 0.6.0 and 0.7.2 inclusive, CustomSerdeLoader is present and active, and the interface is network-accessible to potential attackers.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade kafka-ui to v0.7.3 or later which contains the patched version. As a compensating control, restrict access to the CustomSerdeLoader functionality and implement network-level segmentation.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-60537 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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