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PatchSiren cyber security CVE debrief

CVE-2026-114040 DT42 CVE debrief

A path traversal vulnerability exists in DT42 BerryNet up to 3.10.2, specifically in the DLModelManager.get_model_meta function of the berrynet/dlmodelmgr.py file. This issue allows remote attackers to manipulate the label argument, potentially leading to unauthorized access or data exposure. The vulnerability has been publicly disclosed, and while an exploit exists, there is no information on widespread exploitation or specific impacts.

Vendor
DT42
Product
BerryNet
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-21
Original CVE updated
2026-10-21
Advisory published
2026-10-21
Advisory updated
2026-10-21

Who should care

DT42 BerryNet users, especially those with exposed or internet-facing deployments, should assess their version exposure and verify potential impacts. Security teams and administrators responsible for model package metadata handling systems should prioritize monitoring and remediation efforts.

Why it matters

This path traversal vulnerability in DT42 BerryNet's model package metadata handling requires attention from users with exposed or internet-facing deployments. While exploitation exists, specific impacts and victim organizations are not detailed. Defenders should assess exposure, monitor for unusual activity, and prioritize remediation.

  • Potential unauthorized access to sensitive files or data
  • Possible data exposure or leakage
  • Need for verification of version exposure and system inventory
  • Prioritization of remediation efforts for affected systems

Technical summary

The DLModelManager.get_model_meta function in berrynet/dlmodelmgr.py is vulnerable to path traversal attacks due to improper handling of the label argument. This allows remote attackers to potentially access unauthorized files or data. The vulnerability affects DT42 BerryNet up to version 3.10.2 and has been publicly disclosed. Users with exposed or internet-facing deployments should assess their version exposure and verify potential impacts. The vulnerability can be exploited remotely, and while specific impacts and victim organizations are not detailed, defenders should prioritize monitoring and remediation efforts.

Defensive priority

Medium priority for BerryNet users, especially those with exposed or internet-facing deployments, to assess and verify their versions and exposure.

Recommended defensive actions

  • Assess and verify BerryNet version exposure, especially for deployments with internet-facing or externally accessible model package metadata handling
  • Review and apply vendor remediation when available
  • Monitor for potential unauthorized access or data exposure
  • Inventory and track model package metadata handling systems for unusual activity
  • Perform vulnerability scanning to identify exposed systems
  • Implement network segmentation to limit lateral movement
  • Review access controls and ensure principle of least privilege

Evidence notes

The CVE record and source item provide details on the vulnerability, its potential impact, and affected versions. However, there is limited information on actual exploitation or specific victim organizations.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-114040 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-114040

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-114040 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-114040

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • DT42 BerryNet Model Package Metadata dlmodelmgr.py DLModelManager.get_model_meta path traversal

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/114xxx/CVE-2026-114040.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://vuldb.com/vuln/423078

    Supplemental source - vdb-entry, technical-description

  • Source reference

    Unverified legacy reference

    URL: https://vuldb.com/vuln/423078/cti

    Supplemental source - signature, permissions-required

  • Source reference

    Unverified legacy reference

    URL: https://vuldb.com/cve/CVE-2026-114040

    Supplemental source - third-party-advisory

  • Source reference

    Unverified legacy reference

    URL: https://vuldb.com/submit/1018560

    Supplemental source - third-party-advisory

  • Source reference

    Unverified legacy reference

    URL: https://github.com/DT42/BerryNet/issues/82

    Supplemental source - issue-tracking

  • Source reference

    Unverified legacy reference

    URL: https://github.com/user-attachments/files/33158937/poc.zip

    Supplemental source - exploit

  • Source reference

    Unverified legacy reference

    URL: https://github.com/DT42/BerryNet/

    Supplemental source - product

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.