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CVE-2026-3840 kedro-org CVE debrief

A high-severity path traversal vulnerability exists in Kedro version 1.2.0. The `_get_versioned_path()` method in `kedro/io/core.py` directly interpolates user-supplied version strings into filesystem paths without sanitization, allowing an attacker to escape the intended versioned dataset directory and access files outside the expected path. This issue is also reachable through the CLI via the `--load-versions` parameter, as `_split_load_versions()` in `kedro/framework/cli/utils.py` does not validate the version string. Successful exploitation can lead to unauthorized file reads, data poisoning, cross-project or cross-tenant data access, and broader downstream impacts in environments where Kedro is used with automation or orchestration layers.

Vendor
kedro-org
Product
kedro-org/kedro
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-12
Original CVE updated
2026-06-17
Advisory published
2026-06-12
Advisory updated
2026-06-17

Who should care

Users of Kedro version 1.2.0, especially those using it with automation or orchestration layers, should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability exists in the `_get_versioned_path()` method in `kedro/io/core.py` and the `_split_load_versions()` method in `kedro/framework/cli/utils.py`. The CVSS score for this vulnerability is 7.1, indicating a high severity.

Defensive priority

High

Recommended defensive actions

  • Upgrade to a patched version of Kedro.
  • Implement input validation and sanitization for version strings.
  • Use secure practices when working with filesystem paths.

Evidence notes

Evidence for this vulnerability comes from the CVE record and the NVD detail page. [cve-org] [nvd]

Sources and references

Verified primary and authoritative sources

  • CVE-2026-3840 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-3840

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

  • CVE-2026-3840 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-3840

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

Supplemental references

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.