CVE-2026-3840Public exploit

Local file access via unsanitized version strings

Published Jun 12, 2026 · Updated Jun 12, 2026

Path traversal in Kedro 1.2.0 allows local users to read or overwrite files outside a versioned dataset directory. The _get_versioned_path() method in kedro/io/core.py inserts an unvalidated version string into a filesystem path, while _split_load_versions() accepts the same input from --load-versions. Reachability requires local control of the version value; successful traversal exposes or poisons files accessible to the Kedro process.

CVSS severity7.1
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Kedro 1.2.0 allows local users to read or overwrite files outside a versioned dataset directory. The _get_versioned_path() method in kedro/io/core.py inserts an unvalidated version string into a filesystem path, while _split_load_versions() accepts the same input from --load-versions. Reachability requires local control of the version value; successful traversal exposes or poisons files accessible to the Kedro process.

The record

CVE
CVE-2026-3840
Published
Jun 12, 2026
Updated
Jun 12, 2026
Vendor
Kedro
Product
Kedro
Classifications
CWE-22, T1565.001, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=latest

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Kedro · Kedroversion=unspecified <=latest

Published CVSS scores

7.1huntr.devCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation
T1005Data from Local System

Public exploit references

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Technologies

Your stack

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Your stack

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