CVE-2026-27727Public exploitNetwork attack vector

Code execution via unrestricted remote factory loading

Published Feb 25, 2026 · Updated Feb 25, 2026

Code injection in Machinery For Change, LLC mchange-commons-java before 0.4.0 allows attackers to execute code through crafted JNDI references. ReferenceableUtils.referenceToObject trusts the Reference factoryClassLocation, creates a URLClassLoader for that URL, and initializes its named factory class. Exploitation requires a consuming application to resolve the crafted Reference or deserialize an object that reaches this path, plus outbound access to retrieve the class.

CVSS severity8.9
High
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Machinery For Change, LLC mchange-commons-java before 0.4.0 allows attackers to execute code through crafted JNDI references. ReferenceableUtils.referenceToObject trusts the Reference factoryClassLocation, creates a URLClassLoader for that URL, and initializes its named factory class. Exploitation requires a consuming application to resolve the crafted Reference or deserialize an object that reaches this path, plus outbound access to retrieve the class.

The record

CVE
CVE-2026-27727
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
Machinery For Change, LLC
Product
mchange-commons-java
Classifications
CWE-74, CWE-502
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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=< 0.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Machinery For Change, LLC · mchange-commons-javaversion=< 0.4.0

Published CVSS scores

8.3Red HatCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-502Deserialization of Untrusted Data

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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