CVE-2025-8406Public exploit

Arbitrary file write via unchecked archive links

Published Oct 5, 2025 · Updated Oct 5, 2025

Path traversal in ZenML before 0.84.2 allows local users to write files outside an extraction directory through crafted artifacts. PathMaterializer.load checks each data.tar.gz member name but extracts symbolic and hard links without validating their link targets. Exploitation requires user interaction to load a malicious artifact and permits arbitrary file writes, with command execution only if a critical file is overwritten.

CVSS severity7.8
High
EPSS probability0.36%
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 ZenML before 0.84.2 allows local users to write files outside an extraction directory through crafted artifacts. PathMaterializer.load checks each data.tar.gz member name but extracts symbolic and hard links without validating their link targets. Exploitation requires user interaction to load a malicious artifact and permits arbitrary file writes, with command execution only if a critical file is overwritten.

The record

CVE
CVE-2025-8406
Published
Oct 5, 2025
Updated
Oct 5, 2025
Vendor
ZenML
Product
ZenML
Classifications
CWE-22, T1204.002
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 5, 2025Record 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 <0.84.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

ZenML · ZenMLversion=unspecified <0.84.2

Published CVSS scores

6.3huntr.devCVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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