CVE-2026-122015 Details
Description
A vulnerability was found in NPC-Worldwide npcpy up to 2.1.27. This vulnerability affects the function get_mlx_response of the file npcpy/gen/response.py of the component MLX Provider. The manipulation of the argument model results in improper input validation. The attack can be launched remotely. The exploit has been made public and could be used.
A vulnerability exists in NPC-Worldwide npcpy versions through 2.1.27, specifically within the MLX Provider component. The issue arises in the 'get_mlx_response' function, located in 'npcpy/gen/response.py'. The vulnerability is due to improper input validation of the 'model' argument, which allows for remote exploitation. When an attacker-controlled base model is specified in a local LoRA adapter's configuration, npcpy can be manipulated to download and execute this model, including its weights and tokenizer, during a session. This redirection occurs without any validation or warning, effectively allowing the attacker to control the output generated by the model, including any downstream tool executions in agent-based workflows.
Users are advised to update to npcpy version 2.1.28 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/NPC-Worldwide/npcpy/ | [email protected] | ProductSource CodeVendor |
| https://github.com/NPC-Worldwide/npcpy/issues/309 | [email protected] | ExploitIssue TrackingTechnical AnalysisVendor |
| https://github.com/user-attachments/files/33302583/poc.zip | [email protected] | Broken LinkExploit |
| https://vuldb.com/cve/CVE-2026-122015 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1024531 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/431083 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/431083/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| NPC-Worldwide npcpy | <= 2.1.27 (semver) |
CPE
Remediation
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Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 4, 2026 | New CVE Received | [email protected] |