Improper Input ValidationWeakness · CWE-20

CVE-2025-10950

MEDIUM · 6.3 CVSS v3.1 Published 2025-09-25
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
69/100
Remediation priority · Elevated
Remotely reachable 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
A vulnerability was determined in geyang ml-logger up to acf255bade5be6ad88d90735c8367b28cbe3a743. Affected is the function log_handler of the file ml_logger/server.py of the component Ping Handler. This manipulation of the argument data causes deserialization. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available.

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 · moderate confidence

The ml-logger server contains an insecure deserialization vulnerability in the Ping Handler function (log_handler) of ml_logger/server.py. The function accepts serialized data via the 'data' argument and deserializes it without proper validation, allowing remote attackers to craft malicious payloads that execute arbitrary code on the server.

MitigationReplace unsafe deserialization (likely pickle) with safe formats like JSON, implement strict input validation, and add authentication/authorization checks to the Ping Handler endpoint. Consider implementing a proper message schema and validating all incoming data before processing.

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

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

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 ml-logger installation and version
    Run 'pip show ml-logger' or check your package manager for the installed version of the ml-logger package. If installed from source, check the version tag or the version field in setup.py/pyproject.toml.
    Affected if The installed version is any version of ml-logger that contains the vulnerable server.py with the Ping Handler function (no fixed version confirmed).
  2. Locate the vulnerable server.py file
    Find the ml_logger/server.py file in your environment. This is typically in the package installation directory or source code repository.
    Affected if The file exists and contains a 'log_handler' or 'Ping Handler' function that accepts a 'data' parameter for deserialization.
  3. Inspect the deserialization implementation
    Open ml_logger/server.py and search for the Ping Handler function. Look for usage of unsafe deserialization methods such as pickle.load(), pickle.loads(), yaml.load() with unsafe settings, or similar functions that deserialize data from the 'data' argument without validation.
    Affected if The code uses pickle, yaml.load(Loader=yaml.FullLoader or no Loader), jsonpickle, or other unsafe deserialization methods on the 'data' parameter without prior validation.
  4. Verify input validation is absent
    In the same Ping Handler function, check if there is any input validation, schema checking, or type verification performed on the 'data' argument before deserialization.
    Affected if No validation, schema enforcement, or type checking is performed on the 'data' parameter prior to deserialization.
  5. Determine if the Ping Handler is network accessible
    Check your server configuration, firewall rules, or service binding to see if the Ping Handler endpoint (usually /ping or similar) is exposed to network requests.
    Affected if The Ping Handler endpoint is accessible over the network (even on localhost) without authentication, allowing external input to reach the vulnerable deserialization code.

You are affected if ml-logger is installed with the Ping Handler endpoint accessible and the code uses unsafe deserialization (like pickle) on the 'data' parameter without validation.

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

Replace unsafe deserialization (likely pickle) with safe formats like JSON, implement strict input validation, and add authentication/authorization checks to the Ping Handler endpoint. Consider implementing a proper message schema and validating all incoming data before processing.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2025-10950 in production — separate from our analysis above.

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