CVE-2026-49009Network attack vector

Artifact code injection via path traversal

Published May 27, 2026 · Updated May 27, 2026

Path traversal in Northern.tech Mender Server 4.1.0, 4.0.1 and earlier allows remote authenticated users to modify server files. The artifact-creation API accepts ../ sequences without adequate sanitization, allowing paths to escape its intended directory and overwrite files in the service container. Exploitation requires permission to create artifacts and a victim using that feature; successful attacks can inject arbitrary code into artifacts created by other users of the same API.

CVSS severity3.1
Low
EPSS probability0.52%
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 Northern.tech Mender Server 4.1.0, 4.0.1 and earlier allows remote authenticated users to modify server files. The artifact-creation API accepts ../ sequences without adequate sanitization, allowing paths to escape its intended directory and overwrite files in the service container. Exploitation requires permission to create artifacts and a victim using that feature; successful attacks can inject arbitrary code into artifacts created by other users of the same API.

The record

CVE
CVE-2026-49009
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, CAPEC-126, T1195.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1195.002Compromise Software Supply Chain

Public exploit references

No public exploit references are available in this record.

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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